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[R] Distribution

Srinivas Iyyer

2005-02-21

Replies:

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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