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Fsdb::Filter::dbcolstatscores - compute z-scores or t-scores for each value in a population

Compute statistics (z-score and optionally t-score) over a COLUMN of numbers. Creates new columns called "zscore", "tscore". T-scores are only computed if requested with the "-t" option, or if "--tmean" or "--tstddev" are explicitly specified (defaul...

JOHNH/Fsdb-3.0 - 04 Apr 2022 22:44:17 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-3.0 - 04 Apr 2022 22:44:17 UTC###
Fsdb::Filter::dbcolstats - compute statistics on a fsdb column

Compute statistics over a COLUMN of data. Records containing non-numeric data are considered null do not contribute to the stats (with the "-a" option they are treated as zeros). Confidence intervals are a t-test (+/- (t_{a/2})*s/sqrt(n)) and assume ...

JOHNH/Fsdb-3.0 - 04 Apr 2022 22:44:17 UTC###
Fsdb::Filter::dbcolscorrelate - find the coefficient of correlation over columns

Compute the coefficient of correlation over two (or more) columns. The output is one line of correlations. With exactly two columns, a new column *correlation* is created. With more than two columns, correlations are computed for each pairwise combin...

JOHNH/Fsdb-3.0 - 04 Apr 2022 22:44:17 UTC