Boxplot from matrices
Hello, The following code may help you:
my.matrix <- matrix( rnorm(16), ncol = 4 ) boxplot( my.matrix ~ col( my.matrix ) )
Best regards, Carlos J. Gil Bellosta http://www.datanalytics.com
On Sun, 2009-01-11 at 05:23 -0800, johnhj wrote:
Hii, I will create boxplots from matrices. I have the following data sets: 5.0 1.78 2.99 2.019 0 10.0 1.79 3.00 1.744 0 15.0 1.78 2.98 1.936 0 20.0 1.78 2.99 1.975 0 25.0 1.73 2.91 3.591 0 30.0 1.79 3.00 1.966 0 35.0 1.79 3.00 2.451 0 40.0 1.79 3.00 1.853 0 45.0 1.79 3.00 2.077 0 50.0 1.79 3.00 1.943 0 55.0 1.79 3.00 2.608 0 60.0 1.79 3.00 1.790 0 65.0 1.79 3.00 1.893 0 70.0 1.79 3.00 2.079 0 75.0 1.77 2.97 2.200 0 80.0 1.79 3.01 1.868 0 85.0 1.78 2.99 2.179 0 90.0 1.70 2.85 2.305 0 95.0 1.71 2.87 1.854 0 100.0 1.79 3.00 2.362 0 105.0 1.79 3.00 3.634 0 110.0 1.79 3.00 1.578 0 115.0 1.79 3.00 1.835 0 120.0 1.79 3.00 2.359 0 125.0 1.79 3.00 2.542 0 130.0 1.76 2.95 2.620 0 135.0 1.79 3.00 4.181 0 140.0 1.79 3.00 1.375 0 145.0 1.79 3.00 2.872 0 150.0 1.79 3.00 3.002 0 155.0 1.79 3.00 3.712 0 160.0 1.79 3.01 3.175 0 165.0 1.79 3.00 2.821 0 170.0 1.79 3.00 3.320 0.078 175.0 1.79 3.00 2.076 0 180.0 1.77 2.97 2.186 0 185.0 1.78 2.99 4.652 0 190.0 1.79 3.01 2.051 0 195.0 1.79 3.00 1.922 0 200.0 1.79 3.00 1.945 0 The first thing I do is, to run the command y<-matrix(c(test$V3),ncol=8) to divide the third column in 8 matrices to create 8 boxplots. The I run the command w<-summary(y) to get the values min, max, mean, median, 1.Quan, 3.Quan My problem is, I cann't run the plot command to create the 8 boxplots in a graph... The command plot(y) gives me an error.. Can anybody help me to create the boxplot from matrices in a graph ? greetings, j