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How to use "standard deviation" option in Y error bar menu?
Suppose I have some values and I compute the mean, which I plot in a bar
graph as one bar. Now, in the Format Data Series menu, under the Y error bar tab, I see the option of "Standard deviation" and "Standard error". I can't figure out how to use those; what I do now is put the stdev() of the values into a separate cell and use that cell in the "Custom" field of the Y error bar tab. But this must be the clumsy way of doing it, if it has "Standard deviation" and "Standard error" as built-in options. Presumably for it to use "Standard deviation" and "Standard error" it has to know (I have to select) the whole series of numbers, but then how do I tell it to plot the mean as the value of the bar itself? Thanks, Mike |
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