group_files

Data_Reduction.DSN.Tid_ASCII_data.group_files(files)

Group files by DOY

Data for one day may be in a single file:

95_088.tid

or in several files named sequentially like this:

90_342.tid, 90_342a.tid, 90_342b.tid, 90_342c.tid

or like this:

95_091a.tid, 95_091b.tid, 95_091b.tid

:param fileslist

the files to be grouped

Returns

list of lists of strings