Using summary.env.cat/cont to get rownames considerably slower than applying dimnames() to ff_matrix

[ellisifnygaard]

This is not an important issue or urgent in any way, but I wanted to note that

summary(env_data, short = FALSE)$rownames

is slower than

dimnames(env_data[[1]])[[1]]

by a fair amount:

I have opted to use dimnames() in my pipeline since you need al lot of data in order for length(env_data) to be > 1 and the rownames should be identical across all ff_matrix objects in an env.data object containing CpG measurements.