colorbar {plotly} | R Documentation

## Modify the colorbar

### Description

Modify the colorbar

### Usage

    colorbar(p, ..., limits = NULL, which = 1)

### Arguments

`p` | a plotly object
`...` | arguments are documented here https://plot.ly/r/reference/#scatter-marker-colorbar.
`limits` | numeric vector of length 2. Set the extent of the colorbar scale.
`which` | colorbar to modify? Should only be relevant for subplots with multiple colorbars.

### Author(s)

Carson Sievert

### Examples

    p <- plot_ly(mtcars, x = ~wt, y = ~mpg, color = ~cyl)

    # pass any colorbar attribute --
    # https://plot.ly/r/reference/#scatter-marker-colorbar
    colorbar(p, len = 0.5)

    # Expand the limits of the colorbar
    colorbar(p, limits = c(0, 20))
    # values outside the colorbar limits are considered "missing"
    colorbar(p, limits = c(5, 6))

    # also works on colorbars generated via a z value
    corr <- cor(diamonds[vapply(diamonds, is.numeric, logical(1))])
    plot_ly(x = rownames(corr), y = colnames(corr), z = corr) %>%
     add_heatmap() %>%
     colorbar(limits = c(-1, 1))

[Package plotly version 4.8.0 Index]