[R] (no subject)

Mon Jan 30 19:35:02 CET 2017

Try

d3 <- embed( c( NA, NA, dta$MEI ), 3)

-- 
Sent from my phone. Please excuse my brevity.

On January 30, 2017 9:28:52 AM PST, Kwesi Quagraine <starskykwesi at gmail.com> wrote:
>Upon trying this method, I get an error ;
>
>Error in `$<-.data.frame`(`*tmp*`, "MEImeans", value =
>c(0.313162987462034,  :
>  replacement has 442 rows, data has 444
>
>Any thoughts?
>
>Kwesi
>
>On Mon, Jan 30, 2017 at 5:37 PM, PIKAL Petr <petr.pikal at precheza.cz>
>wrote:
>
>> Hi
>>
>> Probably just a small correction.
>>
>> d3 <- embed( dta$MEI, 3)
>>
>> Cheers
>> Petr
>>
>> > -----Original Message-----
>> > From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of
>Jeff
>> > Newmiller
>> > Sent: Monday, January 30, 2017 4:19 PM
>> > To: r-help at r-project.org; Kwesi Quagraine <starskykwesi at gmail.com>
>> > Subject: Re: [R] (no subject)
>> >
>> > How you proceed depends on how consistent the data are and on what
>you
>> > want to do with those sets of three months after you have
>identified
>> them.
>> >
>> > One approach is to create a matrix where each row contains the
>values
>> > corresponding to the "second previous", "previous", and "current"
>months
>> > data, respectively using the embed() function. The first two rows
>would
>> be
>> > incomplete because the earlier data are missing there:
>> >
>> > d3 <- embed( dta$MEI )
>> >
>> > with which you could compute whatever metric you wanted. For
>example
>> > you could compute rolling means:
>> >
>> > dta$MEImeans <- rowMeans( d3 )
>> >
>> > If your data have missing rows you might need to use the aggregate
>or
>> > merge functions instead.
>> >
>> > For specific layouts of data or metrics you can find specialized
>> functions in
>> > various packages. You might want to search using the R "sos"
>package or
>> > Google for your analysis method of choice.
>> > --
>> > Sent from my phone. Please excuse my brevity.
>> >
>> > On January 30, 2017 6:11:48 AM PST, Kwesi Quagraine
>> > <starskykwesi at gmail.com> wrote:
>> > >Hello, I have a data with two variables nodes and index, I want to
>> > >extract
>> > >3 months seasons, with a shift of 1 month, that is, DJF, JFM, FMA
>etc
>> > >to OND. Was wondering how to go about it. Kindly find data sample
>> > >below, data is in csv format.
>> > >Any help will be appreciated.
>> > >
>> > >My data sample;
>> > >
>> > >      era...1.    Node_freq           MEI
>> > >1   1980-01-01 -0.389855332  0.3394196488
>> > >2 1980-02-01 -0.728019153  0.2483738232
>> > >3   1980-03-01 -1.992457784  0.3516954904
>> > >4   1980-04-01  0.222760284  0.5736836269
>> > >5   1980-05-01  0.972601798  0.6289249144
>> > >6   1980-06-01  0.570725954  0.5736836269
>> > >7   1980-07-01 -0.977966324  0.4120517119
>> > >8   1980-08-01  0.056128836 -0.0104418383
>> > >9   1980-09-01  0.987304573 -0.0687520861
>> > >10  1980-10-01  1.188242495 -0.1403611624
>> > >11  1980-11-01  1.693037763 -0.0963727298
>> > >12  1980-12-01  1.173539720 -0.2539126977
>> > >13  1981-01-01  0.423698206 -0.6140040528
>> > >14  1981-02-01 -2.208098481 -0.5209122536
>> > >15  1981-03-01 -0.786830252  0.1133395650
>> > >16  1981-04-01 -0.110502611  0.3302127675
>> > >17  1981-05-01 -1.272021820 -0.1894645290
>> > >18  1981-06-01  0.394292656 -0.3736021538
>> > >19  1981-07-01  1.452892441 -0.4032687711
>> > >20  1981-08-01  0.698150002 -0.4441882433
>> > >21  1981-09-01  0.997106423 -0.1720737534
>> > >22  1981-10-01  0.247264908 -0.2436828296
>> > >23  1981-11-01  0.771663876 -0.3909929295
>> > >24  1981-12-01 -0.316341458 -0.4943145967
>> > >
>> > >Regards,
>> > >Kwesi
>> > >
>> > >--
>> > >Try not to become a man of success but rather a man of
>value-Albert
>> > >Einstein
>> > >
>> > >University of Cape Coast|College of Agriculture and Natural
>> > >Sciences|Department
>> > >of Physics|
>> > >Team Leader|Recycle Up! Ghana|Technology Without Borders| Other
>> > emails:
>> > >kwesi.quagraine at ucc.edu.gh|kwesi.quagraine at teog.de|
>> > >Mobile: +233266173582
>> > >Skype: quagraine_cwasi
>> > >Twitter: @Pkdilly
>> > >
>> > >     [[alternative HTML version deleted]]
>> > >
>> > >______________________________________________
>> > >R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>> > >https://stat.ethz.ch/mailman/listinfo/r-help
>> > >PLEASE do read the posting guide
>> > >http://www.R-project.org/posting-guide.html
>> > >and provide commented, minimal, self-contained, reproducible code.
>> >
>> > ______________________________________________
>> > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
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