Hi ,
I would like to use ggplot2 to plot a matrix as an image.

You can copy paste the following


Data<-matrix(data=rnorm(900,80,20),nrow=30,ncol=30)

lengthOut<-5



Lengths<- 15
library(reshape2)
library(ggplot2)
tdm <- melt(Data)





ggplot(tdm, aes(x = Var2, y = Var1, fill = factor(value)),levels=seq(0,1,by=0.1)) +
                  labs(x = "MHz", y = "Threshold", fill = "Duty Cycle") +
                  geom_raster(alpha=1) +
                  scale_fill_discrete(h.start=1,breaks=c(20,30,40,50,60,70,80,90),labels=c(20,30,40,50,60,70,80,90),fill="red") +
                  scale_x_continuous(expand = c(0, 0)) +
                  scale_y_continuous(expand = c(0, 0))






# End of code part



What I wanted to do is to print the values 

below 20, with an x color
between 20-30, with a y clor
between 30-40, with a z color
and so on....

I would not care now for the color palette.
Any would do.
Could you please help me with that?

Regards
A

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