Reshaping data frame in R according one column
39758
Collapse / concatenate / aggregate a column to a single comma separated string within each group
100214
Group by multiple columns in dplyr, using string vector input
138242
Change row order in a matrix/dataframe
21821
Reshaping multiple sets of measurement columns (wide format) into single columns (long format)
58630
Merging multiple SpatialPolygonDataFrames into 1 SPDF in R?
158428
Duplicating a column vector into a longer column vector
89350
Plot 3 column of data set in one Plot
146977
Subset of a data frame with the penultimate values of one of the columns
61488
Moving columns within a data.frame() without retyping
34433
Transpose / reshape dataframe without "timevar" from long to wide format
136827
how to replace nth character of a string in a column in r
104654
Transpose N rows with different columns into single column
33391
Select rows in a dataframe in r based on values in one row
43180
Extract data from a file and place in different files based on one column value
71686
Combine a list of data frames into one data frame by row
39641
How to split a data frame?
115983
How to create a column that depends on another created column in pgfplotstable?