Re: uniq --accumulate

[Peng Yu]

>        -o -ops         Specify the operation that should be applied to opCol.
>                        Valid operations:
>                            sum, count, min, max,
>                            mean, median, mode, antimode,
>                            stdev, sstdev (sample standard dev.),
>                            collapse (i.e., print a comma separated list 
> (duplicates allowed)),
>                            distinct (i.e., print a comma separated list (NO 
> duplicates allowed)),
>                            concat   (i.e., merge values into a single, 
> non-delimited string),
>                            freqdesc (i.e., print desc. list of values:freq)
>                            freqasc (i.e., print asc. list of values:freq)
>                        - Default: sum

I'm not sure that I understand this option. I assume that if I don't
specify it I should by default have the sum option. By the following
test case demonstrates that it is not the case.


~$ ./main.sh
groupBy -g 1,2,3 -c 4 -i input1.txt 2>/dev/null
groupBy -g 1,2,3 -c 4 -o sum -i input1.txt
chr1    -       1       3
chr1    +       1       2

~$ cat input1.txt
chr1    -       1       1
chr1    -       1       2
chr1    +       1       2
~$ cat main.sh
#!/usr/bin/env bash

set -v
groupBy -g 1,2,3 -c 4 -i input1.txt 2>/dev/null
groupBy -g 1,2,3 -c 4 -o sum -i input1.txt


-- 
Regards,
Peng