Summarize the data per column and per row
72060
Frequency counts in R
77924
Average rows with same first column
7714
Transpose rows and columns with no aggregate
33487
R aggregate data in one column based on 2 other columns
111719
Format data into a table
132276
How to sum data.frame column values?
67025
How to convert row values to columns with dynamic columns count?
117810
Transform Data to Desired Mean and Standard Deviation
151527
Using R statistics add a group sum to each row
11591
Manipulate results to display rows as columns
149949
How to create multiple rows combining data sets
43607
Summarizing column in QGIS field calculator?
48831
Sql group rows with same value, and put that value into header?
100133
Sum up rows from different data files
63930
How can I "group by" and sum a column in excel?
118644
How to sum all column values in multi-dimensional array?
129336
sum all values for table column based on class