scale_colour_hue {ggplot2} | R Documentation |
Qualitative colour scale with evenly spaced hues.
scale_colour_hue(..., h = c(0, 360) + 15, c = 100, l = 65, h.start = 0, direction = 1, na.value = "grey50") scale_fill_hue(..., h = c(0, 360) + 15, c = 100, l = 65, h.start = 0, direction = 1, na.value = "grey50") scale_colour_discrete(..., h = c(0, 360) + 15, c = 100, l = 65, h.start = 0, direction = 1, na.value = "grey50") scale_fill_discrete(..., h = c(0, 360) + 15, c = 100, l = 65, h.start = 0, direction = 1, na.value = "grey50") scale_color_discrete(..., h = c(0, 360) + 15, c = 100, l = 65, h.start = 0, direction = 1, na.value = "grey50") scale_color_hue(..., h = c(0, 360) + 15, c = 100, l = 65, h.start = 0, direction = 1, na.value = "grey50")
na.value |
Colour to use for missing values |
... |
Other arguments passed on to
|
h |
range of hues to use, in [0, 360] |
c |
chroma (intensity of colour), maximum value varies depending on |
l |
luminance (lightness), in [0, 100] |
h.start |
hue to start at |
direction |
direction to travel around the colour wheel, 1 = clockwise, -1 = counter-clockwise |
Other colour scales: scale_color_brewer
,
scale_color_continuous
,
scale_color_gradient
,
scale_color_gradient2
,
scale_color_gradientn
,
scale_color_grey
,
scale_colour_brewer
,
scale_colour_continuous
,
scale_colour_gradient
,
scale_colour_gradient2
,
scale_colour_gradientn
,
scale_colour_grey
,
scale_fill_brewer
,
scale_fill_continuous
,
scale_fill_gradient
,
scale_fill_gradient2
,
scale_fill_gradientn
,
scale_fill_grey
dsamp <- diamonds[sample(nrow(diamonds), 1000), ] (d <- qplot(carat, price, data=dsamp, colour=clarity)) # Change scale label d + scale_colour_hue() d + scale_colour_hue("clarity") d + scale_colour_hue(expression(clarity[beta])) # Adjust luminosity and chroma d + scale_colour_hue(l=40, c=30) d + scale_colour_hue(l=70, c=30) d + scale_colour_hue(l=70, c=150) d + scale_colour_hue(l=80, c=150) # Change range of hues used d + scale_colour_hue(h=c(0, 90)) d + scale_colour_hue(h=c(90, 180)) d + scale_colour_hue(h=c(180, 270)) d + scale_colour_hue(h=c(270, 360)) # Vary opacity # (only works with pdf, quartz and cairo devices) d <- ggplot(dsamp, aes(carat, price, colour = clarity)) d + geom_point(alpha = 0.9) d + geom_point(alpha = 0.5) d + geom_point(alpha = 0.2) # Colour of missing values is controlled with na.value: miss <- factor(sample(c(NA, 1:5), nrow(mtcars), rep = TRUE)) qplot(mpg, wt, data = mtcars, colour = miss) qplot(mpg, wt, data = mtcars, colour = miss) + scale_colour_hue(na.value = "black")