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Scale ggplot2 Color Gradient to Range Outside of Data (Example) | Specify Colors, Limits & Breaks
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R code of this video:
y = rep(seq(- 2, 2, 1), each = 5),
z = round(rnorm(25, 50, 70)))
library("ggplot2") # Load ggplot2
ggp ＜- ggplot(data, # Create raster with default colors
aes(x, y, fill = z)) +
geom_tile()
ggp # Draw raster
ggp + # Manually set color ranges
scale_fill_gradientn(colors = c("#1b98e0", "#f6f805", "#353436"))
ggp + # Manually set color ranges
scale_fill_gradientn(colors = c("#1b98e0", "#f6f805", "#353436"),
limits = c(- 200, 200),
breaks = c(- 200, - 100, 0, 100, 200))
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y = rep(seq(- 2, 2, 1), each = 5),
z = round(rnorm(25, 50, 70)))
library("ggplot2") # Load ggplot2
ggp ＜- ggplot(data, # Create raster with default colors
aes(x, y, fill = z)) +
geom_tile()
ggp # Draw raster
ggp + # Manually set color ranges
scale_fill_gradientn(colors = c("#1b98e0", "#f6f805", "#353436"))
ggp + # Manually set color ranges
scale_fill_gradientn(colors = c("#1b98e0", "#f6f805", "#353436"),
limits = c(- 200, 200),
breaks = c(- 200, - 100, 0, 100, 200))
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