[R] average for files and graph

[Steve Lianoglou]

Hi,

On Sep 14, 2009, at 2:34 PM, kylle345 wrote:

>
> Hi,
>
> I have 5 different files.  Each file has about 1000 columns and  
> about 3000
> rows.  Basically what I want to do is take the average of the 1000  
> columns
> and then graph it (line graph).  How would I do this for 5 files at  
> the same
> time and plot the average of the 5 files into one graph.
>
> it would be great if you can get me started with a quick code.

You're not doing it at the same time, but doing it sequentially:

Step 1: Load the data
?read.table

Step 2: Get average of columns in a table
?colMeans

Step 3: Plotting. What type of plot do you expect to see?
?plot
?barchart
?barplot
?boxplot
?points
?lines

...


--
Steve Lianoglou
Graduate Student: Computational Systems Biology
   |  Memorial Sloan-Kettering Cancer Center
   |  Weill Medical College of Cornell University
Contact Info: http://cbio.mskcc.org/~lianos/contact