how to add lines to a plot gradually (ggplot2) ?
Hi
I have and algorithm which found some new 2D lines in each iteration, I want to add this lines to ggplot frequently, I searched for it but I can't find a good example,
I write it using normal plot and that's it:
plot(c(0 , Len1), c(0, Len2), type= "n",xlim=c(0,Len1), ylim=c(0,Len2))
for(j in 1:maxa){
for (k in 1:8) {
if( someCondition ){
lines(x = c(br[j,1],br[j+k,1]) , y=c(br[j,3],br[j+k,3]),col="blue")
}
}
}
and this is my current result:
Now I want to write a same thing but with ggplot2
Thanks all
1 answer
If you are working in a loop, store your ggplot in an object and then add a geom_line. Here's a small example.
library(ggplot2)
xy <- data.frame(on_x = 1:10, on_y = rnorm(10))
p <- ggplot(xy, aes(x = on_x, y = on_y)) +
theme_bw() +
geom_line()
for (i in 1:10) {
temp <- data.frame(on_x = 1:10, on_y = rnorm(10))
p <- p + geom_line(data = temp, aes(x = on_x, y = on_y))
}
p
The result can be viewed here.
• 0 views
•
link
updated
by
Ram
•
written
by
Roman Luštrik
•
written
by
Roman Luštrik
Log in to answer this question.
More posts like this
-
combine two density plots in one plot
written by G.S •
-
Plotting overlapping lines in R
written by anna •
-
Error while doing shannon and pielou index analysis using Vegan in R
written by sankadinesh •
-
graphs plotong by R
written by fatimarasool135
-
How to add stats. to volcano plot?
written by ahmad mousavi
-
Boxplot in ggplot2
written by 1769mkc
-
3D PCA issue
written by 1769mkc
-
How to change bar width and axis breaks in a 3D plot made with rgl package
written by IOM •
-
Loci under selection in Arlequin
written by Tohamy •
-
Overlaid XY plot with two different colors for control and target genes
written by Chirag Nepal
Do you mean to animate it? If so see gganimate and tweenr packages.
We can use the same logic to add lines in a loop, something like:
mygg <- ggplot(data... aes(....)) + geom_line(), then do the same inside for loop but adding on top of existing plot,mygg <- mygg + geom_line(data ... aes(....))Curse you, I was typing my answer. :)