On 02-Jul-09 19:00:44, Mark Knecht wrote: > I've passed a data.frame as an input into a function which does some > plotting on a 4x4 matrix of certain parameters within in the > data.frame. I'd like to add a small header on top of each plot with > the name of the data.frame so that it's clear as I compare these 16 > things where each on came from. > > So far I haven't found the right way to get the name of the data.frame > as a string which I can use in something like mtext. Is there one? If > I put dummy text in, or take the time to pass in the name by hand, > then I do get titles just as I'd like, but I'd far rather let the name > of the data.frame speak for itself. > > Thanks, > Mark
One way to do this (which is how I usually do it) is to set up the dataframe name as a string variable, and then use this as required. For instance: datafr <- "My1stDF" DF <- read.csv(paste(datafr,".csv",sep="") {<do things>} plot(whatever,main=paste("Data from", datafr),...) which will read the CSV file whose name corresponds to what you have set 'datafr' to, and then put a corresponding header into the plot. This is a particularly useful technique if you want to loop through several datasets, on the lines of DataFrs <- c("My1stDF", "My2ndDFD", "My3rdDF", "My4thDF") for( datafr in DataFrs ) { {<stuff like the above>} } Several variants of this kind of approach are possible! Hoping this helps, Ted. -------------------------------------------------------------------- E-Mail: (Ted Harding) <ted.hard...@manchester.ac.uk> Fax-to-email: +44 (0)870 094 0861 Date: 02-Jul-09 Time: 20:21:43 ------------------------------ XFMail ------------------------------ ______________________________________________ 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.