How can I remove all rows (from a data frame) that contains less than 20 non-"NA" values? I did try to look up a solution and tried different things, but I am not sure how to go about this.
(I apologize for not adding an example table, but I feel like its not really needed here)
Whether you have pure numerical class or multiple classes across columns of your data frame
dat, this will work.
IndexMat <- sapply(dat, is.na) subset(dat, rowSums(!IndexMat) > 20) ## or maybe `>=`