https://bugs.documentfoundation.org/show_bug.cgi?id=107955
Bug ID: 107955
Summary: Implement an interpolation function
Product: LibreOffice
Version: 5.3.0.0.alpha0+
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Calc
Assignee: [email protected]
Reporter: [email protected]
In an lot of scientific fields, we need to do interpolation of data.
That is, if you have a set of x_i and y_i, you want to know the values y'_i at
abscissas x'_i.
Currently, there is no interpolation function in calc, though.
I would greatly appreciate one.
The basic functionality would be to have a linear interpolation.
Other type of interpolation include staircase and cubic spline.
All these interpolations could be done by simply evaluating the function, or
also by using an averaging between two consecutive x'_i.
Such a function exists in another spreadsheet software called gnumeric, so it
is possible to take some inspiration from it (with a critical look, though).
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