I read this discussion https://ask.libreoffice.org/en/question/36863/how-to-get-the-equation-of-a-trend-line-in-calc/ about how to get the equations of various trend lines into a cells of Calc.
I found this website http://spreadsheetpage.com/index.php/tip/chart_trendline_formulas/ that achieves what I'm looking for.
It would be great an option to get the equations directly from the chart.
This feature does not exist.
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Please describe more precise, what result do you want. Currently you get an image from the chart using copy and paste.
I would like to have an option that automatically copies the trend line equations from the chart to the spreadsheet cell.
This would be very useful in the case that the chart data are updated with the corresponding update of the trend line equation parameters.
At the moment, there are two options:
1) manually copy and paste of the trend line equation parameters;
2) putting the trend line equation into the spreadsheet cells and then creating the chart from them.
The latter is quite automatic way to maintain update the chart and the trend line equation.
This would also be useful to me.
not sure if this is exposed for UNO.
seems it's exposed.
but I can't get this one from chart2.
For example the following method returns "com.sun.star.chart2.XDiagram", not "com.sun.star.chart.XDiagram"