proportions {base} | R Documentation |
Returns conditional proportions given margins
, i.e. entries of x
, divided by the appropriate marginal sums.
proportions(x, margin = NULL)
prop.table(x, margin = NULL)
x |
table |
margin |
a vector giving the margins to split by.
E.g., for a matrix |
Table like x
expressed relative to margin
prop.table
is an earlier name, retained for back-compatibility.
Peter Dalgaard
marginSums
. apply
, sweep
are a more general mechanism for sweeping out marginal statistics.
m <- matrix(1:4, 2)
m
proportions(m, 1)
DF <- as.data.frame(UCBAdmissions)
tbl <- xtabs(Freq ~ Gender + Admit, DF)
proportions(tbl, "Gender")