R rbind rows to df with results calculated by group for multiple columns by name...

Summarize with dplyr "other then" groups...

Parallel wilcox.test using group_by and summarise...

Efficient way of simultaneously deriving count of unique values and summary values for grouped value...

Relative frequencies with dplyr with dynamically created columns pertaining to each group...

data.table: Using with=False and transforming function/summary function?...

Summarize datatable by group based on nrows of other column...

Summarize data in Excel with VBA...

R dplyr Summarising based condition...

dplyr summarise over nested group_by...

finding percentage frequency of outcomes over groups in R...

Taking column mean over a list of data frames in R...

Summarize data by a subset of grouping variable...

How to create summaries of subgroups based on factors in R...

data.table result of by and join not sorted as I expected, why? Is it for efficiency?...

custom summerType in xtraGrid gridControl...

labelling two summary data in one boxplot...

How to summarize date data by groups in R...

How to add a weighted average summary to a DevExpress XtraGrid?...

Oracle - Group-level summaries...