xyplot lattice se bars

  1. Lazar

    xyplot from summary data

    Ok so here is a data set in which I have means for males and females and their SEs (MSE and FSE respectively) along with a factor and a year in school (grade): I want to create a xyplot as follows: library(lattice) xyplot(Males+Females~Grade|factor, data=data, relation="free"...