Search results for "module:Fsdb::Filter::dbrowaccumulate"
Fsdb::Filter::dbrowaccumulate - compute a running sum of a column
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-3.4 - 06 Jan 2024 06:43:43 UTC
Fsdb::Filter::dbrowcount - count the number of rows in an Fsdb stream
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-3.4 - 06 Jan 2024 06:43:43 UTC
Fsdb::Filter::dbpipeline - allow db commands to be assembled as pipelines in Perl
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-3.4 - 06 Jan 2024 06:43:43 UTC