Column and row summary function
Summarizes the columns or rows of a rectangular object.
colIds(x, do.NULL=TRUE, prefix="col")
colMaxs(x, na.rm = FALSE, dims = 1, n = NULL)
colMedians(x, na.rm=FALSE)
colMins(x, na.rm = FALSE, dims = 1, n = NULL)
colRanges(x, na.rm = FALSE, dims = 1, n = NULL)
colVars(x, na.rm=FALSE, dims = 1, unbiased = TRUE,
SumSquares = FALSE, weights = NULL, freq = NULL, n = NULL)
rowIds(x, do.NULL=TRUE, prefix="row")
rowMaxs(x, na.rm = FALSE, dims = 1, n = NULL)
rowMins(x, na.rm = FALSE, dims = 1, n = NULL)
rowRanges(x, na.rm = FALSE, dims = 1, n = NULL)x |
rectangular input object such as a matrix or data.frame. |
dims |
if |
do.NULL |
logical for rowIds or colIds. |
n |
number of rows; treat |
na.rm |
logical, NA values are removed if TRUE. |
prefix |
character string preface for column IDs returned by rowIds or colIds. |
unbiased |
logical, unbiased variance estimates returned if |
SumSquares |
logical, sums of squares are returned if |
weights, freq |
unsupported, here for backwards compatibility. |
corresponding summary by row or by column.
See 'aggregate' package for alternative definitions of colStdevs, colVars, rowStdevs and rowVars functions.
## create a matrix, add dimensions, and obtain
## various summaries
x <- matrix(sin(1:20), nrow=4)
dimnames(x) <- list(c("a","b","c","d"), paste("col", 1:5))
colIds(x)
colMaxs(x)
colMedians(x)
colMins(x)
colRanges(x)
rowIds(x)
rowMaxs(x)
rowMins(x)
rowRanges(x)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.