Upon trying this method, I get an error ; Error in `$<-.data.frame`(`*tmp*`, "MEImeans", value = c(0.313162987462034, : replacement has 442 rows, data has 444
Any thoughts? Kwesi On Mon, Jan 30, 2017 at 5:37 PM, PIKAL Petr <petr.pi...@precheza.cz> wrote: > Hi > > Probably just a small correction. > > d3 <- embed( dta$MEI, 3) > > Cheers > Petr > > > -----Original Message----- > > From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Jeff > > Newmiller > > Sent: Monday, January 30, 2017 4:19 PM > > To: r-help@r-project.org; Kwesi Quagraine <starskykw...@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 > > <starskykw...@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! 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Delete the contents of this e-mail with all attachments and its > copies from your system. > If you are not the intended recipient of this e-mail, you are not > authorized to use, disseminate, copy or disclose this e-mail in any manner. > The sender of this e-mail shall not be liable for any possible damage > caused by modifications of the e-mail or by delay with transfer of the > email. > > In case that this e-mail forms part of business dealings: > - the sender reserves the right to end negotiations about entering into a > contract in any time, for any reason, and without stating any reasoning. > - if the e-mail contains an offer, the recipient is entitled to > immediately accept such offer; The sender of this e-mail (offer) excludes > any acceptance of the offer on the part of the recipient containing any > amendment or variation. > - the sender insists on that the respective contract is concluded only > upon an express mutual agreement on all its aspects. > - the sender of this e-mail informs that he/she is not authorized to enter > into any contracts on behalf of the company except for cases in which > he/she is expressly authorized to do so in writing, and such authorization > or power of attorney is submitted to the recipient or the person > represented by the recipient, or the existence of such authorization is > known to the recipient of the person represented by the recipient. > -- 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.quagra...@ucc.edu.gh|kwesi.quagra...@teog.de| Mobile: +233266173582 Skype: quagraine_cwasi Twitter: @Pkdilly [[alternative HTML version deleted]] ______________________________________________ R-help@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.
