[R] pick up the values

jiangxijixzy jiangxijixzy at 163.com
Wed May 2 15:54:26 CEST 2012


Hi,

I have a list of data, e.g. r[[i]]
r[[1]]=
1      2
1      6
5      5
5.5   3
r[[2]]=
4    6
3    5
7    8
3    5
…
r[[500]].
In the first column, the selected values should like this:
(the later value)-(the former value)>=1
In the second column, the selected values should like this:
(the former value)-(the later value)>=1.
The outputs are:
For r[[1]]
[1,1]  1, [3,1]  5, 
[1,2]  2
For r[[2]]
[1,1]  4, [3,1]  7
[1,2]  6, [2,1]  5
…
r[[500]].
I have no idea what kind of functions can be used in this process. Could you
help me? Thank you very much.


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