Hello Gretl communuty,
i'm writing for an easy question (I hope). I need to standardize a daily time series
based on a monthlly mean and standard deviation (not global mean and standard deviation,
this is the main problem). I've tried with matrix but I'm not able to convert a
matrix, which is made with an aggregate function (based on monthly mean and stddev), in a
variable in my TS with almost 300 obs.