Reframing magic on data.frame
37373
Reshape three column data frame to matrix ("long" to "wide" format)
38616
Clusering based on categorical variables?
152302
R compute percentage values in data frame
45771
Add (insert) a column between two columns in a data.frame
151542
How does one reorder columns in a data frame?
58090
Drop unused factor levels in a subsetted data frame
54675
Reshaping several variables wide with cast
52697
Apply a function to a subset of data.table columns, by column-indices instead of name
83657
How should I implement this interaction between a continuous and categorical predictor?
52843
framed equations
33206
Derivation of Mode of grouped data
146677
Create several new derived variables from existing variables in data.frame
21633
Strange behaviour dropping column from data.frame in R
151986
Generating a vector of dummy variables
131572
Converting list of raster to a data frame using R?
71812
How do R and Python complement each other in data science?
86983
ListPlot: Plotting large data fast