I was trying to use column indexing with the -stim_times option in 3Ddeconvolve and worked out that this option isn't available. Having searched the message boards I've seen previous advice from Bob Cox on using 1dCat:

"If in fact you have a fixed-number-of-columns input file from which you want to extract a single column, then you can do something like

1dcat '../order4_cat_imag_stim_times.1D[3]' > oc3.1D

and then use

-stim_times 4 oc3.1D 'TENT(0,24,9)'

A little clumsier, since you'll have to do the extraction 7 times, but that's the way it is.

Note that 1dcat will NOT work on variable-number-of-columns files."

I've tried using 1dCat to parse my multiple column 1D file, but all I get is a single line of text. I suspect that it is due to the note that Bob provides at the bottom of his advice, about variable-number-of-columns files.

I've attached my 1D file here but I wondered if you can provide advice on how it needs to be changed to be compatible with 1dCat. Alternatively, would a use of Cat be more straightforward (I've tried googling this without luck).

Cheers
Rob