Compute medians columnwise

DESCRIPTION:

Computes median for each column. This is a generic function; methods currently exist for data.frame, series, bdTimeSeries, and bdSignalSeries objects.

USAGE:

colMedians(x, na.rm=F)

REQUIRED ARGUMENTS:

x
a matrix, data frame, bdFrame, timeSeries, signalSeries, bdTimeSeries or bdSignalSeries object.

OPTIONAL ARGUMENTS:

na.rm
if FALSE, missing values ( NA) in the input result in missing values in corresponding elements of the output. If TRUE then missing values are omitted from calculations.

VALUE:

a vector of column medians

DETAILS:

Equivalent to apply(x, 2, FUN=median)

SEE ALSO:

, , , , , .

EXAMPLES:

colMedians(djia[timeEvent("02/20/1989","02/20/1990"), ])