[O] statistical operations with org-mode?

[Jude DaShiell]

After having read through the org-mode info on spreadsheets several times 
and having also read through the calc info a few times I have not ben able 
to get pstdev() to produce anything but errors.  Having checked over the 
data in a table, I found a couple instances where data values were missing 
so I expect this could account for the errors by itself.  In column 3 I 
put the formula =pstdev(@<..@>) and also tried with =pstdev($3).  What is 
the correct syntax?  I wasn't sure which if any would work after having 
done all of that reading.


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