Hello All
Using lapply and ending up with lists of lists I often end up in the
position of not having the names of the list passed by lapply. So, if I
am doing something like a plot, and I would like the title to reflect
which plot it is, I cannot easily do it. So I find myself doing some
unstructured variable passing and counting to be able to keep track of
my data. Then I think perhaps I should not use lapply and just use
simple loops.
Is there a better way to do this?
Here is a simple example to illustrate what I am talking about. The list
has the names of people and I need the names to use as the headings of
the plots.
########################################################################
#########
# Make some test data
people<-list(Andrew=rnorm(10), Mary=rnorm(10), Jane=rnorm(10),
Richard=rnorm(10))
# Function to plot each list entry with its title name
doplot<-function(individual, peoplenames) {
peoplecount<<-peoplecount + 1
plot(individual, main=peoplenames[peoplecount])
}
#
peoplecount<-0
jpeg(file="test.jpg")
par(mfrow=c(2,2))
lapply(people, doplot, names(people))
dev.off()
########################################################################
#############
Thank you for any suggestions.
John Seers
---
______________________________________________
R-help@r-project.org 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.
