format
The format is:
num [1:5, 1:2] 545 24 71 142 1587 ...
- attr(*, "dimnames")=List of 2
..$ : chr [1:5] "African America" "American Indian" "Asian" "Latino" ...
..$ : chr [1:2] "Two-year" "Four-year"source
Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Duxbury