databases/jdb 1.14_3 DragonFly

JDB is a package of commands for manipulating flat-ASCII databases from shell scripts. JDB is useful to process medium amounts of data (with very little data you'd do it by hand, with megabytes you might want a real database). JDB is very good at doing things like:

\* extracting measurements from experimental output
\* re-examining data to address different hypotheses
\* joining data from different experiments
\* eliminating/detecting outliers
\* computing statistics on data (mean, confidence intervals,
  histograms, correlations)
\* reformatting data for graphing programs

Rather than hand-code scripts to do each special case, JDB provides higher-level functions.

JDB is built on flat-ASCII databases. By storing data in simple text files and processing it with pipelines it is easy to experiment (in the shell) and look at the output.