[R] Boxplot from matrices

[johnhj]

Thank you very much for you help...




Carlos J. Gil Bellosta wrote:
> 
> 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
>>
> 
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