Re: [R] sorting of data

From: Jim Porzak <jporzak_at_gmail.com>
Date: Thu 27 Oct 2005 - 14:25:53 EST

One of the most useful functions:
?subset

as in

nsmSubData <- subset(nsmalldata, SESSIONID==7757513)

On 10/26/05, Bill Hunsicker <BHunsicker@rfmd.com> wrote:
> R-Help,
>
>
>
> I am trying to reduce at data set to rows where a specified value occurs
> in a specified value. Below is a screen capture of Rgui:
>
>
>
> > nsmalldata <-read.csv("c:\\DATA\\UNITY\\\PASS0_DOWNFADE\\nsmall.csv")
>
> > nsmalldata
>
> BOARDNUMBER SESSIONID MATRIXID ARRAYPOINT Temperature PS1 PS2
> PS13 PS14 PS15
>
> 1 LB0DC 3043 7757513 1 -9999 -9999 -9999
> 3.6 5 -5
>
> 2 LB0DC 3043 7757515 1 -9999 -9999 -9999
> 3.6 5 -5
>
> 3 LB0DC 3043 7757517 1 -9999 -9999 -9999
> 3.6 5 -5
>
> 4 LB0DC 3043 7757520 1 -9999 -9999 -9999
> 3.6 5 -5
>
> 5 LB0DC 3043 7757522 1 -9999 -9999 -9999
> 3.6 5 -5
>
> 6 LB0DC 3043 7757524 1 -9999 -9999 -9999
> 3.6 5 -5
>
> 7 LB0DC 3043 7757526 1 -9999 -9999 -9999
> 3.6 5 -5
>
> 8 LB0DC 3043 7757528 1 -9999 -9999 -9999
> 3.6 5 -5
>
> 9 LB0DC 3043 7757531 1 -9999 -9999 -9999
> 3.6 5 -5
>
> 10 LB0DC 3043 7757533 1 -9999 -9999 -9999
> 3.6 5 -5
>
> 11 LB0DC 3043 7757535 1 -9999 -9999 -9999
> 3.6 5 -5
>
> 12 LB0DC 3043 7757537 1 -9999 -9999 -9999
> 3.6 5 -5
>
> 13 LB0DC 3043 7757540 1 -9999 -9999 -9999
> 3.6 5 -5
>
> 14 LB0DC 3043 7757542 1 -9999 -9999 -9999
> 3.6 5 -5
>
> 15 LB0DC 3043 7757544 1 -9999 -9999 -9999
> 3.6 5 -5
>
> 16 LB0DC 3043 7757547 1 -9999 -9999 -9999
> 3.6 5 -5
>
> 17 LB0DC 3043 7757549 1 -9999 -9999 -9999
> 3.6 5 -5
>
> 18 LB0DC 3043 7757551 1 -9999 -9999 -9999
> 3.6 5 -5
>
> 19 LB0DC 3043 7757554 1 -9999 -9999 -9999
> 3.6 5 -5
>
> 20 LB0DC 3043 7757556 1 -9999 -9999 -9999
> 3.6 5 -5
>
> >
>
>
>
> For Example
>
> I would like to reduce nsmalldata to only the rows where
> SESSIONID==7757513
>
> I have spent quite a bit of time with R manuals and still have not
> gotten there, can you help me?
>
>
>
> Thanks in advance.
>
>
>
> Regards,
>
> Bill
>
>
>
> Bill Hunsicker
>
> RF Micro Devices
>
> 7625 Thorndike Road
>
> Greensboro, NC 27409
>
> 336-678-5260(W)
>
> 610-579-9985(M)
>
>
>
>
> [[alternative HTML version deleted]]
>
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>

--
HTH,
Jim Porzak
Loyalty Matrix Inc.
San Francisco, CA

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Received on Thu Oct 27 14:30:51 2005

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