[R] Distribution

[Spencer Graves]

      Have you considered "qqnorm" or "hist"?  If yes, "PLEASE do read 
the posting guide! http://www.R-project.org/posting-guide.html".  It 
might help you phrase your question so you are more likely to get a 
useful response -- and it might help you get the answer for yourself 
without waiting for someone to reply. 

      hope this helps.  spencer graves

Srinivas Iyyer wrote:

>Dear group, 
>apologies for asking a simple question. I have a file
>where the data looks like this:
>Probe    Intensity
>0:0	501.0
>1:0	17760.5
>2:0	511.0
>3:0	18468.3
>4:0	199.8
>5:0	508.0
>6:0	17241.8
>7:0	507.5
>8:0	17910.0
>9:0	482.5
>10:0	17480.3
>11:0	434.0
>12:0	17631.3
>13:0	444.8
>14:0	17423.0
>15:0	505.3
>16:0	16693.0
>17:0	438.5
>18:0	16920.0
>19:0	491.3
>20:0	16878.0
>21:0	486.3
>22:0	16582.0
>23:0	483.8
>24:0	16694.8
>25:0	452.3
>26:0	16221.5
>27:0	438.3
>28:0	17119.8
>29:0	455.5
>30:0	16579.0
>31:0	424.5
>32:0	16691.3
>33:0	472.0
>
>
>My question is how do I know the distribution of the
>intensities. My aim is to find out the number of
>intensities or probes that fall in a certain range. 
>
>For example 500 probes has intensities ranging from 50
>to 150.
>
>300 probes has intensities ranging from 151-250
>
>I have no clue how to do it for 500,000 probes. Can
>any one please help doing it in R.
>
>thanks and apologies again
>
>srini
>
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