Hi!
Column A, A1:A100 are dates
Column B, B1:B100 corresponding values
Formula in D1 entered as an array:
=INDEX(A$1:A$100,SMALL(IF(WEEKDAY($A$1:$A$100,2)=5,ROW($1:$100)),ROW(1:1)))
Copy across to E1 then down until you get #NUM! errors meaning the data has
been exhausted.
Format column D as DATE and column E as GENERAL.
Will extract all Friday dates and their corresponding values.
Biff
"dlanc" <[email protected]> wrote in message
news:[email protected]...
> Is there a way that I can convert daily time series data into weekly data
> in
> Excel? I'd like to take 2 columns of data where column 1 is the date
> (M-F)
> and column 2 is the value associated with that date and create a new
> column
> that has only the Fri dates and the values associated with the Fri dates.
> I'd like to similarly further convert the end-of-week data to end-of-month
> data. Thank you.
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