Hey! So I've been struggling on how to count the number of entries in this data frame.
zee = rep(1, 2000)
CI_5 = data.frame(upper_90 -> x1, lower_90 -> y1, zee -> z1)
length(CI_5$z1....zee[x1 <= 1 & y1 >= 1])
I want to count the row if x1 <= 1 and y1 >= 1 but I keep getting 0 even though i see some entries where this is true in the data frame. Any advice?