Numeric vector

Syntax: | `SET AREAFILLCOLOR c GET AREAFILLCOLOR { c }`

If `HISTOGRAMTYPE` is 2 (or 4), then the area under each individual histogram bar can be filled with a specific color. If `c` is a numeric vector, histogram bar i will be filled with color code `c[`i`]`. A negative value represents the index of a fixed color, and a positive value represents the index of a color in the currently loaded `COLORMAP`.

For example, suppose `c` is a numeric vector and you enter `SET AREAFILLCOLOR C` :

`c[`i`] = 2` | uses the `COLORMAP` index `2`
`c[`i`] = -2` | uses the fixed color index `2` ("RED")

If `HISTOGRAMTYPE = 0`, then the `GRAPH` command produces a normal line graph. If `AREAFILLCOLOR` is set to numeric vector `c`, the area under the curve will be filled with the color code `c[0]`.

If `HISTOGRAMTYPE = 1` (or `3`), then the `GRAPH` command produces a histogram profile without tails. If `AREAFILLCOLOR` is set to numeric vector `c`, the histogram profile will be filled with the color code `c[0]`.

Single numeric value or fixed color name
Curve example