Topics

• Reading and writing tabular data in plain-text files (CSV, TSV, etc.)
• Creating vectors
• Parallel processing
• strsplit function
• Reshaping data between long and wide forms
• Missing values
• I/O for foreign tables (Excel, SAS, SPSS, Stata)

Examples

• Read and write Stata, SPSS and SAS files
• Parallel processing with foreach package
• seq()
• Introduction
• Expanding a vector with the rep() function
• Examining missing data