[Libreoffice-bugs] [Bug 117318] New: Wrong SIGMA SLOPE value calculated with LINEST function

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=117318

            Bug ID: 117318
           Summary: Wrong SIGMA SLOPE value calculated with LINEST
                    function
           Product: LibreOffice
           Version: 6.0.3.2 release
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Calc
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: pablofabian.wagnerboian at gmail.com

Created attachment 141741
  --> https://bugs.documentfoundation.org/attachment.cgi?id=141741&action=edit
Sample data

I'm trying to obtain the uncertainty in the determination of the slope in a
linear regression analysis of some data. This sigma slope value is calculated
in LibreOffice as if the line intersects the (0,0) value (b=0 in y=mx+b),
regardless of what the "b" value is. 

Here's where this value is actually calculated:
https://opengrok.libreoffice.org/xref/core/sc/source/core/tool/interpr5.cxx#2464

I'm attaching a ODS spreadsheet as an example.

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