You might find the pairs2 function in the TeachingDemos package useful. On Fri, Feb 10, 2012 at 1:13 PM, jarvisma <marleyjar...@gmail.com> wrote: > I am very new to R and programming and thank you in advance for your patience > and help with a complete novice! > > I am working with a large multivariate data set that has 10 explanatory > environmental variables (e.g. temp, depth) and over 60 response variables > (each is a separate species). My data frame is set up like the simplified > version below: > > JulianDay Temperature Salinity Depth Copepod Barnacle Gastropod > Bivalve > 222 12.1 33 0.3 500 > 756 0 178 > 222 12.3 33.2 1.1 145 > 111 0 0 > 223 11.1 33.1 7 752 > 234 12 0 > > Where JulianDay, Temperature, Salinity, Depth, Copepod, Barnacle, Gastropod, > and Bivalve are the column headers. > > I am using the pairs function in R to explore my data. My data frame is > named Sunset. > Using this code: > > Z=cbind(Sunset$Copepod,Sunset[,c(1:10)]) #the first 10 columns of my data > frame are explanatory variables such as temp > Pairs.Copepod=pairs(Z,main="Copepods vs. explanatory variables", > panel=panel.smooth) > > I get a great pair plot of Copepods vs. all of the 10 explanatory > environmental variables. I would like to do this for each of my 60+ > species. I can't just make one big pair plot of all of my explanatory > variables vs. all of my species because I have too many. So instead I would > like a separate pair plot for each species (each column of data after the > first 10 columns of explanatory variables) > > I would like to be able to write a loop that creates all of these plots at > once, but haven't been able to do so. Ideally, each pair plot would have > the main title be the column header (e.g. Copepod) for that plot. I would > love to include a way to save each pair plot as separate jpeg to a folder > on my desktop with a file name that includes the species name (e.g. > Copepod). > > Again, I am very new to R and to programing so I would GREATLY appreciate > anyone patient and kind enough to respond with lots of detail so I can > hopefully follow your answer and suggestions. I have searched but haven't > been able to find a way to write a loop that uses each column of data, so I > would love some help! > > Thank you! > Marley > > -- > View this message in context: > http://r.789695.n4.nabble.com/apply-pairs-function-to-multiple-columns-in-a-data-frame-tp4377425p4377425.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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.
-- Gregory (Greg) L. Snow Ph.D. 538...@gmail.com ______________________________________________ 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.