Averaging different text files according to there month and year

I have serveral text files (around 100) contating data from different months of different years.

Example File

Year-Month-Data

1992 9 353.07

1992 10 359.88

1992 11 361.09

1992 12 360.35

Not every file matches the start and end date of the other (ie. some files start in 1969 and other in 2000...etc). But I still want to average the data of each corresponding month of the matching year.

~If 1992 (year) 9 (month) then average coresponding data value.

If the file has no matching month or year then the loop simply skips over it.

Would anyone know where to start here?

Many Thanks

Answer 1

[Cris LaPierre]

I'd look into the datetime data time, as well as loading the data into a table.

The datetime data type "understands" the concept of year, month, etc., which should simplify selecting a month's worth of data to average. You even have the potential to do it in just a couple lines of code using findgroups and splitapply functions.

[Michael Lauria]

I will look into it and get back to you.

Many Thanks