pdbheatmap - find all unique values of a key column

pdbheatmap produces a graphical “heat map” of values contained within a FSDB file given two key columns. It is most useful to get a visual representation of scored data, for example.

Example input (myheat.fsdb):

Consider the following example input file, where Joe and Bob were asked to score their favorite fruits on a scale from 1 to 50.

#fsdb -F t Person Fruit value
Joe	Orange	10
Joe	Apple	30
Bob	Orange	5
Bob	Apple	40

Example command usage

We can then run pdbheatmap to generate a graphical map that shows clearly that when you compare Apples and Oranges, Apples will win.

$ pdbheatmap -c Person Fruit -v value myheat.fsdb myheat.png -R -fs 20  -L

Example output