create monthly decile Portfolios sorted on risk (3-years sorted by volatility)

[MarthelF]

ok Patrick, thanks. Sorry but i verified and applied the Code, i think Maybe you have forgotten to calculate the Volatility. If i have very well unterstood the Code you have assigned at a new colomn the Name Volatility but when i checked the numeric data, they are remained unchanged. can't you please checked this? thanks you in Advance.

[Patrick]

@MarthelF 

I thought you've calculated the volatility already and now need just the ranking. 

What you're doing here is not really in my area of expertise so I suggest you split up your problem and then ask new questions one step at a time. 

I'd start with the transformed data structure (giving the Volatility column the appropriate name) and describe the logic you require to get from the "have" data to a column containing the volatility.

[MarthelF]

thanks for your Proposition Patrick. and many thanks for your help!