Hello! I have a small problem. I have two columns, A and B. In these
columns there are returns for different bonds. In column C I calculate
the diffence between A and B (C1=A1-B1). In column D I want to
calculate the standard deviation of the difference dating 30 data
points back. Thus, in D31 i write =STDAV(C1:C30).

This all works fine. However I want to skip having the C column and
make the calculations for the standard deviation of the dífference
dierctly from the values in A and B. However I have not managed to do
so. Please help me out! I know it does not sound worthwhile but having
the extra column really messes up my spreadsheet! Any help appreciated!
Thanks alot!


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freddie mac
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