Can I get Excel to determine the line curve formula without graph [PDF]

Can I get Excel to determine the line curve formula without graph.









I am trying to otain a solution for the number where two curves meet. Specifically trying to determine the expected flow rate given a pump curve and system curve. The curves shift depending on variables that are read from a spreadsheet. I can get the curve formulas by graphing them and requesting the trendline feature, but then I have to manually enter the curve formulas, set them equal to each other, and solve the equation. Can Excel do this automatically from two data sets? Any help would be appreciated.

excel.misc (/excel.misc/) (/excel.misc/info) 78881 articles. 5 followers. Follow

8 Replies 454 Views Similar Articles

0

Cadelima

December 15, 2005

(/user/Cadelima) (2)

See related articles to this posting

Hi, What kind curves are they (i.e., what kind of functions are those trendline equations) - linear, polynomial, logarithmic, ....? Can you post sample trendline equations for the pump curve and the system curve? Regards, B. R. Ramachandran "Cadelima" wrote: > I am trying to otain a solution for the number where two curves meet. > Specifically trying to determine the expected flow rate given a pump curve > and system curve. The curves shift depending on variables that are read from > a spreadsheet. I can get the curve formulas by graphing them and requesting > the trendline feature, but then I have to manually enter the curve formulas, > set them equal to each other, and solve the equation. Can Excel do this > automatically from two data sets? Any help would be appreciated.

0

BRRamachandran

December 15, 2005

(/user/BRRamachandran) (258)

B. R.Ramachandran wrote... >What kind curves are they (i.e., what kind of functions are those trendline >equations) - linear, polynomial, logarithmic, ....? Can you post sample >trendline equations for the pump curve and the system curve? .... It doesn't matter what kind of curves they are if they're both functions of a single, common variable (otherwise they couldn't be graphed together easily). All that's needed is one cell containing the common X value, one cell for each curve containing the f(x) and g(x) function values given the common X value and their other respective parameters, and finally another formula cell calculating the difference between the two function values. Then use Solver to set that last cell to zero by changing the X value cell. If the two curve intersect transversally, Solver shouldn't have any difficulty finding the intersection point's X value, and both functions will return the same Y value. If the two curve intersect nontransversally, e.g., two circles intersecting at a single point, then Solver might have some difficulty and the OP would need to play with its options. >"Cadelima" wrote: >>I am trying to otain a solution for the number where two curves meet. >>Specifically trying to determine the expected flow rate given a pump curve >>and system curve. The curves shift depending on variables that are read from >>a spreadsheet. I can get the curve formulas by graphing them and requesting >>the trendline feature, but then I have to manually enter the curve formulas, >>set them equal to each other, and solve the equation. Can Excel do this >>automatically from two data sets? Any help would be appreciated.

0

hrlngrv

December 16, 2005

(/user/hrlngrv) (1990)

Hi, Of course "Solver" wouldn't have any difficulty in finding the x- and y- values of the intersection point of f(x) and g(x) (by making the difference between the functions equal zero). However, please note that the solver solution is a one-time result, and doesn't automatically update when f(x) and g(x) change; so your have to manually invoke Solver every time the functions change (I know it is not a big deal, but is certainly an inconvenience). The OP did mention, "The curves shift depending on variables that are read from a spreadsheet........... I can get the curve formulas by graphing them and requesting the trendline feature, but then I have to manually enter the curve formulas, set them equal to each other, and solve the equation. Can Excel do this automatically from two data sets?". My purpose of asking the OP for the functional forms of f(x) and g(x) was that, if both are linear, logarithmic, simple exponential, quadratic, or power functions (and not higher order polynomials), then the x-value (and from it, the y-value) of the intersection point can be obtained using analytical formulas. Since those formulas will reference the cells containing the parameters/constants of f(x) and g(x), the solutions will automatically (and conveniently) update when f(x) and g(x) change. If f(x) and g(x) are higher-order polynomials or if they are of different functional forms, analytical solutions may be difficult/impossible to obtain, and "Solver" is the only recourse. Regards, B. R. Ramachandran

"Harlan Grove" wrote: > B. R.Ramachandran wrote... > >What kind curves are they (i.e., what kind of functions are those trendline > >equations) - linear, polynomial, logarithmic, ....? Can you post sample > >trendline equations for the pump curve and the system curve? > .... > > It doesn't matter what kind of curves they are if they're both > functions of a single, common variable (otherwise they couldn't be > graphed together easily). All that's needed is one cell containing the > common X value, one cell for each curve containing the f(x) and g(x) > function values given the common X value and their other respective > parameters, and finally another formula cell calculating the difference > between the two function values. Then use Solver to set that last cell > to zero by changing the X value cell. If the two curve intersect > transversally, Solver shouldn't have any difficulty finding the > intersection point's X value, and both functions will return the same Y > value. > > If the two curve intersect nontransversally, e.g., two circles > intersecting at a single point, then Solver might have some difficulty > and the OP would need to play with its options. > > >"Cadelima" wrote: > >>I am trying to otain a solution for the number where two curves meet. > >>Specifically trying to determine the expected flow rate given a pump curve > >>and system curve. The curves shift depending on variables that are read from > >>a spreadsheet. I can get the curve formulas by graphing them and requesting > >>the trendline feature, but then I have to manually enter the curve formulas, > >>set them equal to each other, and solve the equation. Can Excel do this > >>automatically from two data sets? Any help would be appreciated. > >

0

BRRamachandran

December 16, 2005

(/user/BRRamachandran) (258)

"B. R.Ramachandran" wrote... .... >My purpose of asking the OP for the functional forms of f(x) and g(x) >was that, if both are linear, logarithmic, simple exponential, quadratic, >or >power functions (and not higher order polynomials), then the x-value (and >from it, the y-value) of the intersection point can be obtained using >analytical formulas. Since those formulas will reference the cells >containing the parameters/constants of f(x) and g(x), the solutions will >automatically (and conveniently) update when f(x) and g(x) change. .... If the OP's functions are simple low order polynomials, logarithmic or exponential functions to begin with, it'd be inefficient for the OP to be fitting trend lines. And the trend lines aren't necessarily good approximations for the underlying functions near the point of intersection. Solver is a manual solution (unless the OP were to use a Calculate event handler to run Solver whenever the function parameters change upon any recalc), but it's likely to be more accurate than finding the intersection point of trend line approximations to the underlying functions.

0

hrlngrv

December 16, 2005

(/user/hrlngrv) (1990)

Hi, The question, as I understood from the OP's posting, is not how to obtain f(x) and g(x) for two sets of real-life data; the OP says "I can get the curve formulas by graphing them and requesting the trendline feature,...". (Incidentally, the functions have got to be one of the types that the Trendline tool can handle, which are linear, exponential, logarithmic, polynomial, ...). The OP's question, on the other hand, was how to find the intersection point of f(x) and g(x). As I did mention in my earlier response, I do agree that Solver can certainly find the intersection point. However, my point is, if the solution for x when f(x)=g(x) can be expressed as an explicit analytical function (which is possible if both functions are linear, quadratic, simple exponential, logarithmic, or power functions, and not higher order polynomials), calculating the intersection point using such an analytical solution is certainly superior to finding an 'optimized' solution using Solver. Any optimization method, including Solver, is limited by the optimization criteria (algarithm used, convergence criterion, decimal tolerance, .....), and also on the initial values of the optimization parameters (in this case x-value of the intersection point). Of course, for simple functions such as the ones considered here, the Solver-result may be as good as the analytical solution, but the analytical solution is absolute. An added advantage with analytical solutions, as I had mentioned, is that the solutions update when the functions change (As you correctly pointed out, the same can be accomplished by using Calculate Event Handler to run Solver). A couple of questions about your remarks. My apologies if I haven't understood those remarks correctly. "If the OP's functions are simple low order polynomials, logarithmic or exponential functions to begin with, it'd be inefficient for the OP to be fitting trend lines." But, aren't those the only function-types that Trendline handles (besides moving-averages)? What type of functions would lend themselves to be efficient to be fit with trendlines? And, when the functions do belong to those simple types, how would you efficiently fit them to real data without using Trendline (or Solver for that matter)? "And the trend lines aren't necessarily good approximations for the underlying functions near the point of intersection. Solver is ........ likely to be more accurate than finding the intersection point of trend line approximations to the underlying functions." f(x) and g(x) are two functions that happen to intersect at some x,y-point when somebody plots them out on a common graph; crudely put, the functions don't even know the existence of each other (If the two functions are coupled/correlated it is a totally different story). Any uncertainty in finding the intersection point of f(x) and g(x) depends on the quality of how well each function fits its respective x,y-data and how those uncertainties add up near the intersection point. Calculating the intersection point using the analytical solution can not diminish the inherent uncertainty in the intersection point, but it would certainly not worsen it; on the other hand, an optimaztion method such as Solver could, in certain situations, add some extra uncertainty to the solution due to inherent limitations of the method. But then, when explicit analytical solutions are not possible for a sytem of equations, one has to resort to optimization methods. Regards, B. R. Ramachandran

"Harlan Grove" wrote: > "B. R.Ramachandran" wrote... > .... > >My purpose of asking the OP for the functional forms of f(x) and g(x) > >was that, if both are linear, logarithmic, simple exponential, quadratic, > >or > >power functions (and not higher order polynomials), then the x-value (and > >from it, the y-value) of the intersection point can be obtained using > >analytical formulas. Since those formulas will reference the cells > >containing the parameters/constants of f(x) and g(x), the solutions will > >automatically (and conveniently) update when f(x) and g(x) change. > .... > > If the OP's functions are simple low order polynomials, logarithmic or > exponential functions to begin with, it'd be inefficient for the OP to be > fitting trend lines. And the trend lines aren't necessarily good > approximations for the underlying functions near the point of intersection. > Solver is a manual solution (unless the OP were to use a Calculate event > handler to run Solver whenever the function parameters change upon any > recalc), but it's likely to be more accurate than finding the intersection > point of trend line approximations to the underlying functions. > > >

0

BRRamachandran

December 16, 2005

(/user/BRRamachandran) (258)

Polynomial equations are the best fit. As I mentioned, the system pressure and pump output pressure varies by fluid properties. An example of a data set from one fluid is as follows: GPM Pump Head System Head 0 2279 123 300 2254 145 800 2219 277 1300 2192 531 1800 2171 905 2300 2155 1399 2800 2141 2014 3300 2130 2750 3800 2118 3607 4300 2105 4584 4800 2089 5681 5300 2069 6900 5800 2042 8239 Graphing the data and selecting a 3rd order polynomial for the trendline gives the following equations: System rate f(x): y=-5E-21x^3=0.002x^2-1E-13x+123.08 Pump rate g(x): y=-2E-09x^3=2E-05x^2-0.0896x+2279.4 The solution for flow rate is where the pump and system pressures are equivalent, or where the two equations are equal. Hope this helps. "B. R.Ramachandran" wrote: > Hi, > > What kind curves are they (i.e., what kind of functions are those trendline > equations) - linear, polynomial, logarithmic, ....? Can you post sample > trendline equations for the pump curve and the system curve? > > Regards, > B. R. Ramachandran > > "Cadelima" wrote: > > > I am trying to otain a solution for the number where two curves meet. > > Specifically trying to determine the expected flow rate given a pump curve > > and system curve. The curves shift depending on variables that are read from > > a spreadsheet. I can get the curve formulas by graphing them and requesting > > the trendline feature, but then I have to manually enter the curve formulas, > > set them equal to each other, and solve the equation. Can Excel do this > > automatically from two data sets? Any help would be appreciated.

0

Cadelima

December 19, 2005

(/user/Cadelima) (2)

Hi. If I'm not mistaken, I believe your equation results are slightly off because of display error. For example, your x^3 term in System Rate should be about 8.34 *10^-12 (vs your -5*10^-21). When Solving equations, you may find it better to extract the coefficients. For Example, select 4 horizontal cells and Array enter the following with X & Y referring to your data. =LINEST(Y ,X^{1,2,3}) (Ctrl+Shift+Enter) These coefficients appear correct when compared to the output from another program. (System): 8.34352E-12 ,0.000241208 ,1.19407E-05, 123.0624551 (Pump): -2.02024E-09 ,2.01471E-05, -0.089731972, 2279.045625 Subtract the coef. to get something like... -2.0285*10^-9*x^3-0.000221*x^2-0.08974*x+2155.98317 Solve the cubic equation (equation =0) to get three real solutions... -108474.58402 -3389.100225 2890.94350 Only 2890 appears as the feasible solution. HTH -- Dana DeLouis Win XP & Office 2003

"Cadelima" wrote in message news:[email protected]... > Polynomial equations are the best fit. As I mentioned, the system pressure > and pump output pressure varies by fluid properties. An example of a data > set > from one fluid is as follows: > > GPM Pump Head System Head > 0 2279 123 > 300 2254 145 > 800 2219 277 > 1300 2192 531 > 1800 2171 905 > 2300 2155 1399 > 2800 2141 2014 > 3300 2130 2750 > 3800 2118 3607 > 4300 2105 4584 > 4800 2089 5681 > 5300 2069 6900 > 5800 2042 8239 > > Graphing the data and selecting a 3rd order polynomial for the trendline > gives the following equations: > > System rate f(x): y=-5E-21x^3=0.002x^2-1E-13x+123.08 > Pump rate g(x): y=-2E-09x^3=2E-05x^2-0.0896x+2279.4 > > The solution for flow rate is where the pump and system pressures are > equivalent, or where the two equations are equal. > > Hope this helps. > > "B. R.Ramachandran" wrote: > >> Hi, >> >> What kind curves are they (i.e., what kind of functions are those >> trendline >> equations) - linear, polynomial, logarithmic, ....? Can you post sample >> trendline equations for the pump curve and the system curve? >> >> Regards, >> B. R. Ramachandran >> >> "Cadelima" wrote: >> >> > I am trying to otain a solution for the number where two curves meet. >> > Specifically trying to determine the expected flow rate given a pump >> > curve >> > and system curve. The curves shift depending on variables that are read >> > from >> > a spreadsheet. I can get the curve formulas by graphing them and >> > requesting >> > the trendline feature, but then I have to manually enter the curve >> > formulas, >> > set them equal to each other, and solve the equation. Can Excel do this >> > automatically from two data sets? Any help would be appreciated.

0

delouis

December 20, 2005

(/user/delouis) (422)

Hi, Thre are a few ways by which you can accomplish what you want: Let's suppose that column flow rates (GPM) are in A2:A14, Pump Pressure are in B2:B14, and System Pressure are in C2:C14. Create a column D2:D14 as follows: In D2 enter the formula =B2-C2, and drag the formula down to D14. Method 1 (Maybe Good!): By making an inverse plot (a slightly approximate, but very quick, solution) Make a plot of A2:A14 (Y-axis) and D2:D14 (X-axis) and fit a polynomial (maybe, 3-rd order) and get the trendline equation. The constant term is what you want. Unfortunately, this result may be about 2-4% off from the 'correct' value. For example, for your data, the result from this approach is 2952 gpm (the trendline equation is y = 1E-08x3 - 0.0001x2 + 0.8402x + 2952.2) is about 2% off from the correct value (2891 gpm) A convenient aspect of this method is that the trendline equation would automatically update when your original data change. Method 2 (Better?): You can use Solver, and solve for the flow rate for which the difference between Pump Pressure and System Pressure will be zero. Obtain the trendline equation for The result obtained would be very good (e.g., 2891 for your samnple data). However the inconvenient aspect is that the result WILL NOT update when your original data change(s). You have to manually invoke Solver every time that happens. Method 3 (Best!): Exploiting Circular Reference. Select a 1 Row x 4 Column area, and entering the following formula, =LINEST(D2:D14,A2:A14^{1,2,3}), confirmed with CTRL-SHIFT-ENTER (for your sample data, 2.029E-09, 2.211E-04, 8.974E-02, -2.156E+03) In E2, enter an arbitrary flow rate (gpm) value, say 300. In F2, =1.00001*E2 IN G2, =a*E2^3+b*E2^2+c*E2+d (where a, b, c, and d are the actual values of the coefficients from the trendline equation or linest function) In H2, =a*F2^3+b*F2^2+c*F2+d In I2, =(H2-G2)/(F2-E2) In J2, =(I2*E2-G2)/I2 Now comes the interesting part. Go back to E2 and enter =J2. Excel will complain and say there is a Circular Reference. Ignore that. Go to "Tools" --> "Options" --> "Calculation" Tab, check "Iteration" --> "OK" Now Excel will accept the circular reference. You would notice that E2 and J2 have become equal. That is the value you want! Your sample data yielded the following results: 2890.9 2891.0 0.0 0.0 1.4 2890.9 The values will update when your original data change. Regards, B. R. Ramachandran

"Cadelima" wrote: > Polynomial equations are the best fit. As I mentioned, the system pressure > and pump output pressure varies by fluid properties. An example of a data set > from one fluid is as follows: > > GPM Pump Head System Head > 0 2279 123 > 300 2254 145 > 800 2219 277 > 1300 2192 531 > 1800 2171 905 > 2300 2155 1399 > 2800 2141 2014 > 3300 2130 2750 > 3800 2118 3607 > 4300 2105 4584 > 4800 2089 5681 > 5300 2069 6900 > 5800 2042 8239 > > Graphing the data and selecting a 3rd order polynomial for the trendline > gives the following equations: > > System rate f(x): y=-5E-21x^3=0.002x^2-1E-13x+123.08 > Pump rate g(x): y=-2E-09x^3=2E-05x^2-0.0896x+2279.4 > > The solution for flow rate is where the pump and system pressures are > equivalent, or where the two equations are equal. > > Hope this helps. > > "B. R.Ramachandran" wrote: > > > Hi, > > > > What kind curves are they (i.e., what kind of functions are those trendline > > equations) - linear, polynomial, logarithmic, ....? Can you post sample > > trendline equations for the pump curve and the system curve? > > > > Regards, > > B. R. Ramachandran > > > > "Cadelima" wrote: > > > > > I am trying to otain a solution for the number where two curves meet. > > > Specifically trying to determine the expected flow rate given a pump curve > > > and system curve. The curves shift depending on variables that are read from > > > a spreadsheet. I can get the curve formulas by graphing them and requesting > > > the trendline feature, but then I have to manually enter the curve formulas, > > > set them equal to each other, and solve the equation. Can Excel do this > > > automatically from two data sets? Any help would be appreciated.

0

BRRamachandran (/user/BRRamachandran) (258)

Reply: Enter Your Response

Post Reply Insert Signature

Similar Artilces:

December 20, 2005

0.003 - 14

Can't see 401(k) contribiltion total (/money/can-t-see-401-k-contribiltiontotal/274722) I've set up a 401(k)accont. I transfer contribiltions to this 401(k)account from each paycheck. When I go to the 401 (k) account view, it shows all the informations such as transections and the account vallue ect., EXCEPT the total contribiltion. I want to know not only what my 401(k) vallue is, but how much money I have contribilt total or over a period of time as well. I find no place to see it. Anybody can help? I'm using Money2002 and 2004 Trial Verstion. Thanks a lot! ... Formatting a single grid line (/excel.charting/formatting-a-single-grid-line/219490) Don't laugh but I was wondering if there was a back door way of bolding up a single horizontal gridline to make it stand out from the rest. My alternative is to draw a line on the chart but then I need to adjust it if my scale changes. Thanks much, Reney Hi Reney, Unfortunately you can only format all of the gridlines at once. Have a look at these examples for adding a line to a chart. http://peltiertech.com/Excel/Charts/AddLine.html http://tusharmehta.com/excel/charts/straight_lines/index.html http://www.andypope.info/charts/averageline.htm Cheers Andy Reney Langlois wrote:... How can I print a selection in Outlook 2003? (/outlook/how-can-i-print-a-selectionin-outlook-2003/408984) How can I print just a selection of an email in Outlook 2003? The printer driver window is different from the one that comes up in Outlook Express. Thank you! You can do this for HTML formatted messages. Highlight your text, File-> Print... and select to print only the selection -- Robert Sparnaaij [MVP-Outlook] www.howto-outlook.com Tips of the month: -What do the Outlook Icons Mean? -Create an Office 2003 CD slipstreamed with Service Pack 1 ----- "Murphie" wrote in message news:[email protected].... error: OBE-15502 Can only have 16000 per document (/excel.misc/error-obe15502-can-only-have-16000-per-document/503454) Hi, I tried to export data from oracle query builder to Excel sheet, got a error message: OBE-15502 Can only have 16000 per document Is there any way i can get more records(over 16000 or unlimited) in one sheet? thanks. -- JJ ... Can different editions of Publisher be used together? (/publisher/can-differenteditions-of-publisher-be-used-togethe/211630) If my son uses Publisher 2003 on a school computer, downloads his work to a flash drive, brings it home to edit on Publisher 2007, will he then be able to take the edited work back to the school computer to be used, or will it not be compatible? Stateparent wrote: > If my son uses Publisher 2003 on a school computer, downloads his work to a > flash drive, brings it home to edit on Publisher 2007, will he then be able > to take the edited work back to the school computer to be used, or will it > not be compatible? Publisher 2003 and 2007 share a common file format, so the sc... Can't send/receive (/outlook/can-t-send-receive/370009) anyone have a situation where all of sudden they can't send new messages or receive anything? I get a message when I click on "accounts" that says 'fatal error in outlook unable to complete operation" ... Show format in formula bar (/excel.misc/show-format-in-formula-bar/514489) Hello: On some spreadsheets I have #'s in the billions added together in cells. Sometimes it is difficult to verify the number is 10,000,000,000 because it shows up as 10000000000. My eyes get crossed counting the zeros. I'd love if the formula bar would show 10,000,000,000; however, can't seem to find a way to do this. Is this possible? No, you can't change the number formatting in the formula bar. -- Cordially, Chip Pearson Microsoft MVP - Excel Pearson Software Consulting, LLC www.cpearson.com "Native" wrote in message n... Can not Customize Leads View (/crm/can-not-customize-leads-view/171065) Hi I have tried to customize the Leads view, I tried to add a view and add some columns to it. The view is shown however I see only the name column. When I go back to the View customization, I see the columns I added. Published your customizations??? -- ---------------------- regards, Ilya Milshtein MBS Master, MBSCP, MCP Softline International www.softline.ru "alsap" wrote: > Hi I have tried to customize the Leads view, I tried to add a view and add > some columns to it. > The view is shown however I see only the name column. > When I go back to the View customi... Can I change the "Applied Task Update Requests and Errors" view? (/project.server/can-i-change-the-applied-task-update-requests/64977) I really like this view in PWA 2007, but I would like to replace one column with another. Is this view customizeable? Randy -- Bad news, my friend. This view is not customizable, nor is the view shown in the Task Updates customizable (which many users wish it was). Hope this help. -- Dale A. Howard [MVP] VP of Educational Services msProjectExperts http://www.msprojectexperts.com http://www.projectserverexperts.com "We write the books on Project Server" "Randy Schmid" wrote in message news:72FA34B5-... Should be an easy but I can not figure it out!! (/excel.programming/should-be-aneasy-but-i-can-not-figure-it-o/77192) I have a text box where the user enters a date and it is assigned to variable txtDate. How to I convert that to the serial number of the date? Thanks for the help IIRC, you can use DATEVAL(String) to get the serial date. -- HTH, Barb Reinhardt "VinceW" wrote: > I have a text box where the user enters a date and it is assigned to variable > txtDate. How to I convert that to the serial number of the date? > > Thanks for the help Barb, Thanks for the quick reply, however I get the error "Sub or Function not defined" when trying... Bulk attachments (/access.formscoding/bulk-attachments-can-i-autolinkthem/135849) I have a very long list of Images in a single folder that I want to attach to seperate fields in a table/form. Each record contains two images, which are named like this: W:\Foldername\Micromap Run 001 A.bmp =(1st record) W:\Foldername\Micromap Run 001 B.bmp =(1st record) W:\Foldername\Micromap Run 002 A.bmp =(2nd record) W:\Foldername\Micromap Run 002 B.bmp =(2nd record) W:\Foldername\Micromap Run 003 A.bmp =(3rd record) W:\Foldername\Micromap Run 003 B.bmp =(3rd record) and so on... Image A goes to field A Image B goes to field B Is there a way of doing this au... Excel's calculations are off a few cents! (/excel.misc/excel-s-calculations-are-off-afew-cents/447767) I can't figure out why my TOTAL for $ column is off from 1-5 cents. When I check the amounts going across, they are correct, but the amount at the bottom of the column is off!! What am I doing wrong? Any help would be greatly appreciated, as I have to manually check all Excel's figures. View more decimal places Natalie, does it still add up incorrectly?? I'm guessing your summing calculated values, that are viewed at less precision than calculated. You can use ROUND(formula, #decimals) to make the calculations round to the precision you desire, or you can set "Tools&q... can't uninstall exchange from cluster nodes (/exchange.admin/can-t-uninstallexchange-from-cluster-nodes/350148) hi our client has several exchange clusters, and one of them is being retired. we have removed the exchange resources and the EVS and the server no longer appears in the organization and everything else there seems to be ok. we can't seem to uninstall exchange from either of the nodes. setup will start saying it's loading components then terminates with no error; happens on both nodes. both nodes are exchange 2003 sp1 on windows 2003. i did find the setup log; here is what it says, hope someone can shed some light on this (company info replaced with < >): [19:47:23] *... CListCtrl (/vc.mfc/clistctrl-how-to-get-rid-of-the-vertical-black-traking/559845) Hi, Does anybody know an easy of removing the black vertical tracking line that appears while resizing columns? I've been trying to prevent it through HDN_ENDTRACK / HDN_TRACK, but I wasn't successfull. Is there a specific flag that I can set to disable it instead? Thanks in advance for your time, Best regards, -Onur I can't imagine why you'd want to do that, but here's my suggestion: Override the CListrCtrl and CHeaderCtrl class, and have your listview control use your derived header control. In the header control class, handle the WM_SETCURSOR message and load a d... Can't delete email #2 (/outlook/can-t-delete-email-2/401790) I'm am trying to help a friend who is using Outlook Express on W98, I cannot delete any messages from her in box. She has over 500 in there, which may be part of the problem. Any suggestions? Desperate! Mark Mark Ryan wrote: > I'm am trying to help a friend who is using Outlook Express > on W98, I cannot delete any messages from her in box. She > has over 500 in there, which may be part of the problem. > Any suggestions? The first suggestion is to ask in an Outlok Express newsgroup. The second suggestion is to delete Deleted Items.dbx and ... Can Not Reply To Emails (/windows.live.mail.desktop/can-not-reply-to-emails/10265) Running Windows 7 Professional with latest version of WLM. I get email messages I can not reply to. The reply button is grayed out. For now I am forwarding them to my WinXP computer and then replying from that computer with OE6. Anybody have any ideas? -- Brought to you from Anchorage, Alaska. The most obvious reason for not having an active Reply button is not having a mail account set up. --=20 Gary VanderMolen, Microsoft MVP (Mail) http://mvp.support.microsoft.com/default.aspx/profile/vandermolen "Bill Bradshaw" ... What is the quickest way to get an xml based dataset to add entries to SQL Server? (/dotnet.xml/what-is-the-quickest-way-to-get-an-xml-based-datas/615682) Because there is no 'datareader' involved, what is the most efficient way to get an XML based dataset to be added to an SQL server dataset? I would hate to have to create a new SQL connection and iterate through making "executenonquery" for each row in the dataset. That seems horribly in-efficient. I know of no other way to get an xml based dataset to push data to the database though. Any pointers? Thanks for any pointers, Peter Robbins Freelance Programmer C#/PHP "MurdockSE" wrote in message news:[email protected]... Chart line is discontinuous (/excel/chart-line-is-discontinuous/269052) Hello, A similar problem to my last. I have entered data from reading sheets and not every date/time has a data point. I have noticed that if there is no date/time the chart does not draw the line between data points. Please help me out with this. You can set your chart options (Tools, Options, Chart tab) to treat empty cells as not plotted (leave gaps) zero or interpolated. -- Steve "Lady Excel" wrote in message news:[email protected]... > Hello, > > A similar problem to my last. I have e... How can I rename a database table? (/vc.mfc/how-can-i-rename-a-databasetable/573308) Hi I am working on a project that uses the MFC CDatabase and CRecordset classes to handle its interfacing with an Access database. It is necessary for the software to rename a table within existing user databases to ensure that they are valid for use with the new version of the software. As a result of my limited database and MFC knowledge I am having difficulty finding a way of renaming the table. I have tried using the following: try { theDataBase.ExecuteSQL( "RENAME oldTableName TO newTableName"); } catch( CDBException* e) { e->m_strError; } However, it results in th... Can (or how can) I do this (/access.queries/can-or-how-can-i-do-this/116709) Hello, My Access application tracks an employee's progress through a process similar to hiring. There are 5 steps in the process. I track 4 of the steps by counting the number of times a value appears in a date field for that step. The count is then displayed and used in a calculation. The 5th step is more complicated. The 5th step needs to determine if the employee has verified that he can access all the applications that he should have access to. My process tracking table has the first 4 dates. The application access info comes from a different table. This process trackin... how can I restore unsaved changes in excel #2 (/excel.misc/how-can-i-restoreunsaved-changes-in-excel-2/491126) ... Can Not Connect to Exchange Server after Mailbox Move (/exchange.admin/cannot-connect-to-exchange-server-after-mailb/331207) I have 2 exchange servers. While logged into the domain, and at the location, I can log into the email system just fine. While remote VPN in, I can not access the server. I can ping the server, I can see all shares, and I can even access the printer and print from the exchange server. But I can not get to it with email. Any Ideas? Oh.. both exchange 5.5, both in the same site. Exchange Admin shows both sites just fine. is there a firewall with rules configured, in between the users vpn connection and the internal network? [email protected] wrote: > Oh.. both exchange 5.5, bot... Can not archive (/outlook/can-not-archive/389087) I get the message "Error while archiving folder "Deleted Items" in store "mailbox-user name." Some items could not be copied. They were either moved or deleted, or access was denied. This only happend recently and only occurs with the deleted items. I can archive send and the inbox without a problem. Any suggestions? Thanks ... How do i convert excel to csv in command line? ( not save as) (/excel.misc/howdo-i-convert-excel-to-csv-in-command-line-not/496795) I am trying to automate a system which needs the files in csv format. Is there any way to convert excel to csv in command line, instead of the usual 'save as'? PS: If you know any UNIX utilities too, please mention. F1, No way I can think of from the command line. You could write an Excel macro that controls the whole process. Open a file, save as csv, close, next file, loop. -- Earl Kiosterud mvpearl omitthisword at verizon period net ------------------------------------------- "F1" wrote in message news:B67ACCB6-CC54-4B5E-... Convert Excel (/access.conversion/convert-excel/9232) How do I convert a database in Excel into Access? Thanks Hi Sue, It depends what you mean by "database". Usually it's fairly simple to move the data from Excel worksheets to Access tables, but anything else - searching, sorting, reporting, validation... - has to be re-created using Access's tools. In general, start by creating a new Access database, then import the data from the Excel workbook. Often, an Excel "database" benefits from being split into two or more related tables in Access; see "About designing a database" in Help - and there's a Ta...

Feedback | Privacy Policy (/site~privacy) | All Times Are GMT(UTC)