Question about Exercise 2 in section 5.2.3 (Matrix Statistics) #184
Description
For this question -
"Create a new assay called “cpm” (Counts-Per-Million), which contains the result of dividing the counts matrix by the total counts in millions."
The course's answer is -
assay(tung, "cpm") <- counts(tung)/tung$total_counts/1e6
Shouldn't it be -
assay(tung, "cpm") <- sweep(counts(tung), 2, tung$total_counts, "/")/1e6
?
p.s. This is a wonderful course/book!!