Tour I/O Menu Use this menu to choose among a few different ways to write or read information about a tour. Save Coeffs Like "Save Coeffs" in "Rotate," this will write into an ascii file the coefficients of the current view of the data as a two column matrix. The first column contains the X coefficients of all the variables and the second contains the Y coefficients. If XGobi is running from within S these coefficients will be written out as a vector. Save History Save a tour history. Read History Read in a previously stored tour history. (Select the "Backtrack" button for more information.)