[R] Plot dataframe with color based on a column value
Rui Barradas
ru|pb@rr@d@@ @end|ng |rom @@po@pt
Sun Jan 24 18:45:26 CET 2021
Hello,
Base R:
colrs <- rainbow(length(unique(ROI$Z)))
roi_wide <- reshape(ROI, v.names = "Y", timevar = "Z", idvar = "X",
direction = "wide")
matplot(roi_wide, type = "l", lwd = 3, lty = "solid", col = colrs)
Hope this helps,
Rui Barradas
Às 14:48 de 24/01/21, Luigi Marongiu escreveu:
> Hello
> is it possible to color the data of a dataframe according to the
> values of one column?
> I have a dataframe that OI have subdivided into X and Y, with a third
> Z with the sample number. I would like to plot Y~X but coloring using
> Z. But I would like to use base R and not lines.
> Is that possible?
> Thank you
>
> ```
> d <- 2
> K <- 10^13
> A1_0 <- 1
> A2_0 <- 100
> A3_0 <- 500
> A4_0 <- 10000
> PCR <- function(initCopy, dupRate, Carry) {
> ROI_T = initCopy
> A = array()
> for (i in 1:45) {
> ROI_TplusOne <- ROI_T * dupRate * (1 - ROI_T/Carry)
> A[i] <- ROI_TplusOne
> ROI_T <- ROI_TplusOne
> }
> return(A)
> }
> A1 <- PCR(A1_0, d, K)
> A2 <- PCR(A2_0, d, K)
> A3 <- PCR(A3_0, d, K)
> A4 <- PCR(A4_0, d, K)
> # store results and plot
> Z <- c(rep(1, 45), rep(2, 45), rep(3, 45), rep(4, 45))
> X = rep(1:45,4)
> Y = c(A1, A2, A3, A4)
> ROI <- data.frame(Z, X, Y)
> plot(Y ~ X, data = ROI, type = "l", lwd = 3)
> ```
>
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