Sum Over Groups of Genes
Condense the rows of a DGEList object so that counts are summed over specified groups of genes.
## S3 method for class 'DGEList' rowsum(x, group, reorder=FALSE, na.rm=FALSE, ...) ## S3 method for class 'SummarizedExperiment' rowsum(x, group, reorder=FALSE, na.rm=FALSE, ...)
x |
a |
group |
a vector or factor giving the grouping, with one element per row of |
reorder |
if |
na.rm |
logical ( |
... |
other arguments are not currently used |
If x is a SummarizedExperiment object, it is first converted into a DGEList object.
A new DGEList object is computed, with the same columns as x, but for which the rows correspond to the unique values of group.
The counts for rows with the same group value are summed.
Columns of x$genes will be retained in the output if they contain group-level annotation.
Columns that vary within groups will be dropped.
DGEList object with the same number of columns as x and rows corresponding to the unique values of group.
Gordon Smyth
rowsum in the base package.
x <- DGEList(counts=matrix(1:8,4,2))
rowsum(x, group=c("A","A","B","B"))Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.