R combine data frame by two variables
105683
Ordering Merged data frames
58630
Merging multiple SpatialPolygonDataFrames into 1 SPDF in R?
89743
Split data.frame based on levels of a factor into new data.frames
141208
subset a data.frame with multiple conditions
71686
Combine a list of data frames into one data frame by row
5136
How to sum a variable by group
53048
placing mean,total and max together in a table in r
154797
Oracle Combine several columns into one
143372
Combined plot of ggplot2 (Not in a single Plot), using par() or layout() function?
151868
Combining 2 covariance matrices
2060
How do I create group data in a category with more than and less than in R?
136664
Combine two datetime variables into one
89583
Transforming variables for multiple regression in R
142573
Replacing composite variables by a single variable
44888
ListPlot with many variables
61885
Multiple histograms in ggplot2
78742
How to add two dependent random variables?