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#1
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Trendline partial data
I am trying to add a trendline to a process variable on a line-chart and use
it to predict when remedial action is required. When the data parameter is reset, the trendline automatically takes in this new set of figures and attaches it to the previous, giving a totally skewed analysis. Is there any way that I can select only some of the data to trend? Then as the reset data grows, only to select the new series from the process? Thanks |
#2
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Trendline partial data
Hi David,
Jon Peltier has a site that mentioned about dynamic charts which I find useful and you might want to check this out. http://peltiertech.com/Excel/Charts/Dynamics.html You should find your solution there. You might need to modified a bit to suit what you really wants (at least that is what I do). "David Taylor" wrote: I am trying to add a trendline to a process variable on a line-chart and use it to predict when remedial action is required. When the data parameter is reset, the trendline automatically takes in this new set of figures and attaches it to the previous, giving a totally skewed analysis. Is there any way that I can select only some of the data to trend? Then as the reset data grows, only to select the new series from the process? Thanks |
#3
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Trendline partial data
You need to add a series that contains only the data you want included
in the trendline. - Jon ------- Jon Peltier Peltier Technical Services, Inc. http://peltiertech.com/ On 5/19/2010 5:00 AM, David Taylor wrote: I am trying to add a trendline to a process variable on a line-chart and use it to predict when remedial action is required. When the data parameter is reset, the trendline automatically takes in this new set of figures and attaches it to the previous, giving a totally skewed analysis. Is there any way that I can select only some of the data to trend? Then as the reset data grows, only to select the new series from the process? Thanks |
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