I am confused about the following codes are doing: X2_X26 <- paste("X", 2:26, sep = "") portf_exret <- paste("excess_return_portfolio", 1:25, sep ="") X...

According to the documentation we can use visibility: collapse on a <col /> element to collapse or fold all associated columns. But (in Chrome and Edge) I noticed that some elements remain visib...

I have F <- structure(c(0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0), .Dim = c(3L, 5L)) How can I remove from F the columns that have less than 2 consecutive zero? Thx!

I'm in the beginnings of teaching myself how to code and working on an assignment to create a responsive site but can't use frameworks like Twitter bootstrap or any of the new grid properties. The pro...