I have a multidimensional data which looks like the following:

       "S1-a" "S2-b" "S3-c" "S4-d" "S5-a" "S6-b" "S7-c" "S8-d"
"T1-A"
"T1-B"
"T1-C"
"T1-D"
"T2-A"
"T2-B"
"T2-C"
"T2-D"

I read it from csv file and would like to have 16 separate data frames like this

     "S1-a" "S2-a"     "S1-b" "S2-b"     "S1-c" "S2-c"    "S1-d" "S2-d"
"T1-A"            "T1-A"            "T1-A"            "T1-A"
"T2-A"            "T2-A"            "T2-A"            "T2-A"

     "S1-b" "S2-b"   ...
"T1-B"               ...
"T1-B"               ...

...
...

One way is to use loops to cycle through, but I think it's even simpler to use regex expression to separate them since "abcd" and "ABCD" are unique strings in the table. Does anybody have any pointer on how to do this?

Thanks
Gordon

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