applies statistical functions to all columns of a data frame
Usage
colStatistics(
dataFrame,
functions = c("sum", "mean", "min", "max", "number.na", "length"),
na.rm = FALSE,
functionColumn = FALSE
)Arguments
- dataFrame
data frame with numeric columns only
- functions
vector of statistical functions to be applied on each column of dataFrame possible values: "sum", "mean", "min", "max", "number.na" (number of NA values), "length" (number of values)
- na.rm
if TRUE, NA values are removed before applying the statistical function(s)
- functionColumn
if TRUE, a column containing the function name is contained in the result data frame, otherwise the function names become the row names of the result data frame