For each observation 
corresponding to a row in the group of 
series, compute the median of the 
values 
for the observation.
corresponding to a row in the group of series, compute the median of the values for the observation.@rmedian |
corresponding to a row in the group of series, compute the median of the values for the observation.
is odd, the median is the middle ordered-observation and when 
is even, the median is the average of the two middle ordered-observations. The median may be written as
represent the data for observation 
ordered from low to high.