R Coding Example

An R Coding Example is a coding example of an R program.

• Context:
  • It can be focused on:
    • an R String Operation.
    • an R Pattern Matching Expression.
    • an R Conditional Statement.
    • an R File Operation.
    • an R Subroutine.
    • an R Package.
    • an R Data Structure.
      • an R Scalars.
      • an R Array Data Structure.
      • an R Hash Data Structures.
      • an R Arrays of Arrays.
      • an R Array of Hashes.
      • an R Hash of Arrays.
      • an R Hash of Hashes.
    • R References.
    • R Persistent Data.
    • R Predictive Modeling Example.
  • …
• Counter-Example(s):
  • Perl Coding Example.
  • MATLAB Coding Example.
  • Python Coding Example.
  • Java Coding Example.
• See: R Programming Language.

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References

• http://thomaslevine.com/!/r-spells-for-data-wizards/?goback=.gde_36836_member_259602893

Examples

reading from a file

array <- read.csv("~/data/documentClickedTermids.csv", header=F) ;
array <- read.table('~/data/vocabClickedTerms.csv', header=FALSE, stringsAsFactors=FALSE, sep=',') 

writing to a file

write.csv(array, file = '~/data/documentClickedTermids.csv', row.names = FALSE)