Carlos Gershenson wrote: > Hi all, > > Let us have: > > x<-1:10 > y<-x/2 > plot(table(x), type="p") > points(table(y), pch=2) > > > Why does the last command plots the values of table(y) using the x > coordinates of table(x)??? >
It's just a coincidence. It's actually using the indices 1:10, regardless of the values of x. You've given points() a vector of 10 values to plot, and by default it plots them against their index. To get what you want you need temp <- table(y) points(names(temp), temp) The reason plot() worked is because it has a method for tables, but points() does not. In general the high level plot functions in R tend to have lots of methods, but the low level ones make you do the work. Duncan Murdoch > Am I doing something wrong? > What would be a way of plotting the points of table(y) on their place? > > #this problem also occurs with: > plot(table(y), type="p") > points(table(x), pch=2) > > > Thank you very much, > Carlos > > ______________________________________________ > [email protected] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
