Hi
> Is it possible to run Melodic intermediate steps like PPCA or PICA only from the
> command line?
No, but you can request the intermediate files to be written out, just use the relevant --Opca -Owhite option
> How to use temporal concatenation approach from the
> command line?
-a concat
> Does Melodic use PPCA only instead of PCA to perform data
> reduction?
>
By default it uses PPCA for data reduction, though you can specify the number of PCs explicitly using the -d option.
hth
Christian
> Thanks,
> RNSK
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