marginSums | R Documentation |
For a contingency table in array form, compute the sum of table entries for a given margin or set of margins.
marginSums(x, margin = NULL) margin.table(x, margin = NULL)
x |
an array |
margin |
a vector giving the margins to compute sums for.
E.g., for a matrix |
The relevant marginal table, or just the sum of all entries if margin
has length zero. The class of x
is copied to the
output table if margin
is non-NULL.
margin.table
is an earlier name, retained for back-compatibility.
Peter Dalgaard
proportions
and addmargins
.
m <- matrix(1:4, 2) marginSums(m, 1) marginSums(m, 2) DF <- as.data.frame(UCBAdmissions) tbl <- xtabs(Freq ~ Gender + Admit, DF) marginSums(tbl, "Gender") proportions(tbl, "Gender")
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.