I am experimenting with some of the common r functions.
I had a question re:using "gsub" (or some similar functions) on the contents of
a list.
I want to design a function that looks at "everything" contained din a list,
and anytime it finds the text string "pattern" replace it with "x". I also
wish to preserve the "structure" of the original list. What is a good way to
accomplish this?
I tried :
a = matrix(data=c(23,45,'red',78),nrow=2)
b = c('red','green',1,2,3)
d = data.frame( test1=c(223,445,'red',78,56) , test2= c('red',NA,NA,NA,NA) )
e= list(a,b,d)
list1 = list(a,b,d,e)
list2 = lapply(list1,function(list)(gsub("red","green",list)))
str(list1)
str(list2)
but the structue fo the list changed.
---------------------------------
Give spam the boot. Take control with tough spam protection
[[alternative HTML version deleted]]
______________________________________________
[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.
