[R] Creating rectangular plots with x and y coordinates and treatments from a matrix for a randomized block design

[Laz]

Hi,

fortune("Yoda") returns a quote of fortunes.

My problem was to draw horizontal and vertical lines to separate the 
blocks in my design. Each block has 4 elements. The first and second 
rows and columns are in block 1, 3rd  and 4th rows and 1st and 2nd 
columns are in 3 etc

     [,1] [,2] [,3] [,4]
[1,]    2    4    2    3
[2,]    1    3    4    1
[3,]    3    2    2    3
[4,]    1    4    4    1



On 9/22/2013 4:38 PM, Rui Barradas wrote:
> fortune("Yoda"). :-)