r - Count number of rows by group using dplyr - Stack Overflow I am using the mtcars dataset I want to find the number of records for a particular combination of data Something very similar to the count(*) group by clause in SQL ddply() from plyr is working
r - dplyr summarise_each with na. rm - Stack Overflow Is there a way to instruct dplyr to use summarise_each with na rm=TRUE? I would like to take the mean of variables with summarise_each("mean") but I don't know how to specify it to ignore missing v
summarize () deprecated in R. What to use instead? Returning more (or less) than 1 row per summarise() group was deprecated in dplyr 1 1 0 ℹ Please use reframe() instead ℹ When switching from summarise() to reframe(), remember that reframe() always returns an ungrouped data frame and adjust accordingly Call lifecycle::last_lifecycle_warnings() to see where this warning was generated
dplyr - r summarize_if with multiple conditions - Stack Overflow I'm trying to reduce a df of observations to a single observation (single line) I would like to summarize_if is numeric with the mean and if is string or factor with the mode The code below doesn't
r - summarizing counts of a factor with dplyr - Stack Overflow I want to group a data frame by a column (owner) and output a new data frame that has counts of each type of a factor at each observation The real data frame is fairly large, and there are 10 diff