Fsdb::Filter::dbcolpercentile - compute percentiles or ranks for an existing column River stage zero No dependents

Compute a percentile of a column of numbers. The new column will be called *percentile* or *rank*. Non-numeric records are handled as in other programs. If the data is pre-sorted and only a rank is requested, no extra storage is required. In all othe...

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::dbcolhisto - compute a histogram over a column of Fsdb data River stage zero No dependents

This program computes a histogram 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). Defaults to 10 buckets over the exact range of data. Up to three p...

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

Fsdb::Filter::dbcolstats - compute statistics on a fsdb column River stage zero No dependents

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-2.69 - 22 Nov 2019 17:43:00 UTC

Fsdb::Filter::dbcolstatscores - compute z-scores or t-scores for each value in a population River stage zero No dependents

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-2.69 - 22 Nov 2019 17:43:00 UTC

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