kuva radar

Render a radar / spider chart from a tabular file. Each row becomes one series polygon; multiple rows can be grouped by a column to compute per-group means.

Input format

Tab- or comma-separated file with one numeric column per axis. Use --axes to select which columns to use.

label	speed	power	agility	stamina	technique
Warrior	8	9	5	8	6
Mage	4	6	6	5	10
Rogue	7	5	10	6	7

Basic examples

# Each row is one polygon; label column for legend entries
kuva radar data.tsv --axes speed power agility stamina technique \
    --label-col label --legend -o radar.svg

# Group rows by a column; polygon = mean per group
kuva radar data.tsv --axes x1 x2 x3 x4 \
    --color-by species --legend -o groups.svg

# Filled polygons with shared scale
kuva radar data.tsv --axes a b c d e \
    --filled --min 0 --max 10 \
    --title "Performance Profile" -o radar_filled.svg

# Normalized axes (each axis scaled to [0,1] independently)
kuva radar data.tsv --axes var1 var2 var3 var4 \
    --normalize --dot-size 4 -o radar_norm.svg

All flags

Data selection

FlagDescription
--axes <COLS...>Axis columns (names or 0-based indices); at least 3 required
--label-col <COL>Column of series labels (one label per row)
--color-by <COL>Group rows by this column; one polygon per group (mean values)

Chart style

FlagDefaultDescription
--filled—Fill each polygon with a semi-transparent color
--opacity <F>0.25Fill opacity (used with --filled)
--min <F>0Shared axis minimum value
--max <F>data maxShared axis maximum value
--grid-lines <N>5Number of concentric grid rings
--normalize—Normalise each axis independently to [0, 1]
--dot-size <PX>—Draw dots at polygon vertices
--legend—Show a legend

Output / appearance

FlagDescription
-o <FILE>Output file (.svg, .png, .pdf; default: stdout)
--title <TEXT>Chart title
--width <PX>Canvas width in pixels
--height <PX>Canvas height in pixels
--theme <NAME>Visual theme (default, dark, minimal, …)