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MS Office Forum / Excel / Programming / May 2008Plotting and selecting data
Hello, I have a long-winded question: I am analyzing data that goes in a sequence. I have: Segments 1-15 as the first part of my test Segments 16-18 as the second part of my test. My macro calculates the time elapsed from segments 1-15 in column AO and 16-18 in column AQ. If the time period is not running, then I have it specified to pump out "" as the output. What I'd like to do is plot my y-axis data in column AI in two graphs: AI versus AO and then another AI versus AQ. I do not know how to make the macro realize when the timer has started in the segment and when it has ended so that I can plot my graphs, as the starting row is never the same between files. Any help would be appreciated! Thanks! <3 Matt Does the timer increment for several rows, then revert to zero? You could test for the timer value, and if it is greater than the pervious value, it's continuing, otherwise it's starting over. This blog post features a VBA procedure that similarly divides columns into chart series based on a test of values in a column: http://peltiertech.com/WordPress/2008/05/22/vba-to-split-data-range-into-multipl e-chart-series/ - Jon ------- Jon Peltier, Microsoft Excel MVP Tutorials and Custom Solutions Peltier Technical Services, Inc. - http://PeltierTech.com _______ > Hello, I have a long-winded question: > [quoted text clipped - 14 lines] > Thanks! > <3 Matt No, essentially what I have is the following: data time1 data time1 data time1 data time2 data time2 data time2 What I'd like to do is to start/end the series when time begins/ends. Matt > Does the timer increment for several rows, then revert to zero? You could > test for the timer value, and if it is greater than the pervious value, it's [quoted text clipped - 29 lines] > > Thanks! > > <3 Matt If you change "" to NA() in the formula, you will get something that looks like this: data time1 #N/A data time1 #N/A data time1 #N/A data #N/A time2 data #N/A time2 data #N/A time2 The #N/A errors look ugly, but they are omitted in a line or XY chart (rather than plotting as a zero). - Jon ------- Jon Peltier, Microsoft Excel MVP Tutorials and Custom Solutions Peltier Technical Services, Inc. - http://PeltierTech.com _______ > No, essentially what I have is the following: > [quoted text clipped - 48 lines] >> > Thanks! >> > <3 Matt That would work... I guess what I was looking for was to define variables as the rows that time1/2 starts and ends. Then I can use those variables to define the ranges of the charts. Is there an easy way to define these variables? > If you change "" to NA() in the formula, you will get something that looks > like this: [quoted text clipped - 68 lines] > >> > Thanks! > >> > <3 Matt Actually, adding #N/A messes up all my other calculations. :( > If you change "" to NA() in the formula, you will get something that looks > like this: [quoted text clipped - 68 lines] > >> > Thanks! > >> > <3 Matt Worksheet columns are cheap. Keep the original table as is, and use it for display and for subsequent calculations. Then create another range that uses formulas like =IF(LEN(B2)=0,NA(),B2), and use these columns for chart source data. - Jon ------- Jon Peltier, Microsoft Excel MVP Tutorials and Custom Solutions Peltier Technical Services, Inc. - http://PeltierTech.com _______ > Actually, adding #N/A messes up all my other calculations. :( > [quoted text clipped - 78 lines] >> >> > Thanks! >> >> > <3 Matt I think I got it Jon... it will run slow, but it will work. Any way to speed up this code? Dim FirstData As Long Dim LastData As Long Range("AQ15").Select Do Until Not ActiveCell = "" Selection.Offset(1, 0).Select Loop FirstData = ActiveCell.Row Do Until ActiveCell = "" Selection.Offset(1, 0).Select Loop LastData = ActiveCell.Row - 1 Then I will use First and Last data variable to define my rows in the graphs. > If you change "" to NA() in the formula, you will get something that looks > like this: [quoted text clipped - 68 lines] > >> > Thanks! > >> > <3 Matt |
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