https://bugs.freedesktop.org/show_bug.cgi?id=73450
Priority: medium
Bug ID: 73450
Assignee: [email protected]
Summary: Trendline equation must not be displayed if chart type
is not XY
Severity: normal
Classification: Unclassified
OS: All
Reporter: [email protected]
Hardware: Other
Status: UNCONFIRMED
Version: Inherited From OOo
Component: Chart
Product: LibreOffice
Created attachment 91776
--> https://bugs.freedesktop.org/attachment.cgi?id=91776&action=edit
Example of trenline equation which is nonsense
Problem description:
Steps to reproduce:
1. Insert data X=1, 4, 8; Y=11, 12, 13
2. Create a *Line* type chart (no XY scatter) with X data as Categories
3. Insert trend line and check Show equation
Current behavior:
The equation shown (f(x) = x + 10) is not informative as its X-values are
Categories which values are integers 1, 2, 3. User may think that X-values in
equation are its X-data which is wrong.
Expected behavior:
Equation (and R^2) must not be displayed if chart type is not XY scatter.
However trendline can be shown, even if chart type is not XY scatter, as it can
be interesting to show the trend.
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