CPlotView:GetPtErrX
The GetPtErrX method returns the x errorbar value of a point in the class data matrix.
xErr = CPlotView:GetPtErrX( n ) |
n is the index of the point in the plot data.
xErr is the value of the x errorbar.
On success, this method returns the x errorbar value.
On failure, this method returns 0.
This method returns the x errorbar value of the specified point at index n. If n is out of range, the value 0 is returned. To remove ambiguity about whether the point truly has an x errorbar value of 0 or is out of bounds, check the index before calling this method.
The following script adds some points, then finds the nearest point and prints its x errorbar value:
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-- create a new CPlotView |
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-- add a point |
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-- add a point |
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-- get index of point nearest 4,72 |
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-- result: n = 1, xerr = 10.25 |
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