Sequential Line Plots in R
[This article was first published on Guy Abel » R, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here)
Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.
Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.
I was trying to create some sequential plots today in R to analyse some MCMC simulations. I found the par(ask=TRUE) command very useful for looking at iterations of individual parameter values. Setting the ask graphical parameter to TRUE (before a for loop) allows you to update plots by clicking on the plotting device (in windows). Here is some example code to show how par(ask=TRUE) works.
xx <- rnorm(1000) xx <- matrix(xx,10,100) par(ask = TRUE) plot(xx[1,], type="n", ylim=range(xx), ylab="") for(i in 1:10){ plot(xx[i,], ylim=range(xx), ylab="", type="l") }
This will give the following output after each click:
If you want to keep previous plotted lines on the plot you can adapt the for loop in such a manner:
par(ask=TRUE) plot(xx[1,], type="n", ylim=range(xx), ylab="") for(i in 1:10){ plot(xx[1,], ylim=range(xx), ylab="", type="l") for(j in 1:i){ lines(xx[j,]) } }
This will give the following output after each click:
To leave a comment for the author, please follow the link and comment on their blog: Guy Abel » R.
R-bloggers.com offers daily e-mail updates about R news and tutorials about learning R and many other topics. Click here if you're looking to post or find an R/data-science job.
Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.