Search results for "module:Fsdb::Filter::dbcolmovingstats"
Fsdb::Filter::dbcolmovingstats - compute moving statistics over a window of a column of data
Compute moving statistics over a COLUMN of data. Records containing non-numeric data are considered null do not contribute to the stats (optionally they are treated as zeros with "-a"). Statitics are computed over a WINDOW of samples of data. [In pro...
JOHNH/Fsdb-3.4 - 06 Jan 2024 06:43:43 UTC
Fsdb::Filter::dbrowdiff - compute row-by-row differences of some column
For a given column, compute the differences between each row of the table. Differences are output to two new columns, "absdiff" and "pctdiff". Differences are either relative to the previous column (*incremental* mode), or relative to the first row (...
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
Fsdb::Filter::dbcolsdecimate - drop rows selectively, keeping large changes and periodic samples
For each of the given columns, prune it back to show changes with at most RELATIVE_PRECISION fraction of total range change (default: 0.01; alternativey one can specify an absolute precision). This tool is designed for reducing the actual data in a g...
JOHNH/Fsdb-3.4 - 06 Jan 2024 06:43:43 UTC