CODEWITHSUNDEEP
rgraphicsplotggplot2
jon
jon

Reputation: 11376

rectangle bar graph filled with color and distance using R (base R or ggplot2 or other package)

I have following type of data and I want to produce bar graph. 

Mark <- 1:10
Post <- c(0, 1, 4, 5, 6,
          8, 10,  11, 12,  13)
color <- c(1,0.5,1, 1, 0.6, 0.7, 1,1,1) # 9 intervals between ten points

Here ten Mark should be in Post in X axis. Instead of bar height is constant however color coded by color variable. For example interval between 1-2 corresponds to 1 color value while 2-3 corresponds to color value 0.5. Thus for 10 Mark there are 9 color values.

enter image description here

How can produce such a graph ?

EDITS:

It would be perfect if I could add the color scale legend - color intensity vs numeric value

Upvotes: 1

Views: 1190

Answers (1)

James
James

Reputation: 66844

Not perfect, but should get you started:

greens <- colorRampPalette(c("white","darkgreen"))
barplot(as.matrix(diff(Post)), horiz=T, col=greens(10)[10*color], axes=F, xlab="Mark")
axis(1, labels=Mark, at=Post)
axis(3, labels=Post, at=Post)

Plot

Upvotes: 4

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