kuva parallel
Parallel coordinates — multivariate visualisation where each axis represents one variable and each observation is a polyline.
Input: one row per observation; --value-cols selects the numeric axes; an optional group column colors the lines.
| Flag | Default | Description |
|---|---|---|
--value-cols <COL>… | required | Two or more numeric columns (names or indices) |
--group-col <COL> | — | Group/color column |
--axis-names <NAME>… | header or "Axis N" | Override axis labels |
--no-normalize | off | Disable per-axis normalization to [0, 1] |
--curved | off | Render smooth Bézier curves instead of polylines |
--opacity <F> | 0.5 | Line opacity |
--show-mean | off | Overlay a bold group-mean line |
--legend <LABEL> | — | Add a legend |
kuva parallel data.tsv \
--value-cols sepal_length sepal_width petal_length petal_width \
--group-col species
kuva parallel data.tsv \
--value-cols 0 1 2 3 --group-col 4 \
--curved --show-mean --legend "Species" \
--title "Iris Parallel Coordinates"
See also: Shared flags — output, appearance, axes.