Fsdb::Filter::dbrowaccumulate - compute a running sum of a column River stage zero No dependents

Compute a running sum over a column of data, or of a constant incremented per row, perhaps to generate a cumulative distribution. What to accumulate is specified by "-c" or "-C". The new column is named by the "-N" argument, defaulting to "accum"....

JOHNH/Fsdb-2.69 - 22 Nov 2019 17:43:00 UTC

Fsdb - a flat-text database for shell scripting River stage zero No dependents

JOHNH/Fsdb-2.69 - 22 Nov 2019 17:43:00 UTC

Fsdb::Filter::dbrowcount - count the number of rows in an Fsdb stream River stage zero No dependents

Count the number of rows and write out a new fsdb file with one column (n) and one value: the number of rows. This program is a strict subset of dbcolstats. Although there are other ways to get a count of rows ("dbcolstats", or "dbrowaccumulate -C 1"...

JOHNH/Fsdb-2.69 - 22 Nov 2019 17:43:00 UTC

Fsdb::Filter::dbpipeline - allow db commands to be assembled as pipelines in Perl River stage zero No dependents

This module makes it easy to create pipelines in Perl using separate processes. (In the past we used to use perl threads.) By default (as with all Fsdb modules), input is from STDIN and output to STDOUT. Two helper functions, fromfile and tofile can ...

JOHNH/Fsdb-2.69 - 22 Nov 2019 17:43:00 UTC

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