Help needed regarding getting the log of excel data

[KenF81]

Hi

Apologies for the simplistic nature of my query but I am fairly new to econometric testing.
I have a time series of returns for incides covering fixed income, equity, value and momentum. I have imported them into Eviews without getting the natural logs. When I look at the descriptive stats I notice a few anomolies. The cash returns have a higher standard deviation to equity and a higher mean monthly return than you woould expect. The stats for equity/value/momentum look ok but cash is way out. My question is do I need to get the log of the cash returns and leave the others as they are? Or is it preferable to transform all the data into logs?

Thanks a lot
K

[startz]

You probably have a data error.