R Notes

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Revision as of 16:48, 13 June 2008 by Sperry (talk | contribs) (New page: == A few very basic R examples == === Loading a plain CSV file into a vector === myvector = read.csv(file="path_to_csv_file", header=FALSE) * You may then access each of the individual...)
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A few very basic R examples

Loading a plain CSV file into a vector

  myvector = read.csv(file="path_to_csv_file", header=FALSE)
  • You may then access each of the individual components using myvector[,1], myvector[,2], ... myvector[,n]

Scatterplot two components of a vector

In this example, myvector has 4 components and we want to plot the 3rd and 4th

  plot(myvector[,3], myvector[,4], main="This is the title of the plot")

Plot a simple histogram

  hist(myvector[,3])
  • Also try density(myvector[,3]) for a density-plot

Linear regression

  mymodel = lm(myvector[,3] ~ myvector[,4])
  summary(mymodel)