rowratio | R Documentation |
Compute column ratio across rows of a numeric matrix-like object for each level of a grouping variable.
rowratio(x, group, reorder = T, na.rm = T)
x |
a matrix or data frame. |
group |
a vector of factor giving grouping, with one element per row of x. |
reorder |
if TRUE, then the result will be in order of row names of x. If row names of x is null, the results is not reordered. |
na.rm |
logical (TRUE or FALSE). Should NA (including NaN) values be replaced by value 0? |
rowratio
returns a matrix or data frame containing the ratios. There
will be one row per unique value of group.
rowsum
, rowmean
x <- matrix(runif(50), ncol = 5)
group <- sample(1:4, 10, TRUE)
xratio <- rowratio(x, group)
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