Hi I am trying to use gretl for modeling daily data as opposed to yearly data. I feel that this is possible as one of the sample data ( file data 10-2), hourly load and temperature data seem to be compatible for time series analysis. The data is an hourly information. W hat I have with me is daily observation which I wish to use in the format given below. obs (meaning) 8:01 1 st of August 8:02 ....... 8::30 30 th of August 8:31 31 st of August 1:01 1 st of September 1:02 ........ 1:30 30 th of August I would appreciate any feed back.