Leeds, Mark (IED) escribió: > I don't think it matters whether it's a ts or a vector. > > WS<-WS[ ( WS > 5 ) & ( WS < 8 ) ] > > Check to make sure it works. > Dear Mark,
Yes it works. But I think that it matters for a ts since I want to know the days when those values where observed. The above solution gives me the number of days when those values were observed but not the days when they were observed. It is important to me to know if, for example, in april 1999, I had 3 periods with winds blowing below 8 m/s and over 5 m/s. Best regards! Antonio > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of antonio rodriguez > Sent: Tuesday, October 24, 2006 1:57 PM > To: r-help@stat.math.ethz.ch > Subject: [R] extract certain values from a ts > > Hi, > > Having several daily wind speed time series I want to extract those > consecutive days over and below certain values (i.e. 5 < x <8) Don't > know which funtion to use (aggregate, lapply?) and how to do it. > > Thanks in advance > > Antonio > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > 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. > -------------------------------------------------------- > > This is not an offer (or solicitation of an offer) to buy/sell the > securities/instruments mentioned or an official confirmation. Morgan Stanley > may deal as principal in or own or act as market maker for > securities/instruments mentioned or may advise the issuers. This is not > research and is not from MS Research but it may refer to a research > analyst/research report. Unless indicated, these views are the author's and > may differ from those of Morgan Stanley research or others in the Firm. We > do not represent this is accurate or complete and we may not update this. > Past performance is not indicative of future returns. For additional > information, research reports and important disclosures, contact me or see > https://secure.ms.com/servlet/cls. You should not use e-mail to request, > authorize or effect the purchase or sale of any security or instrument, to > send transfer instructions, or to effect any other transactions. We cannot > guarantee that any such requests received via e-mail will be processed in a > timely manner. This communication is solely for the addressee(s) and may > contain confidential information. We do not waive confidentiality by > mistransmission. Contact me if you do not wish to receive these > communications. In the UK, this communication is directed in the UK to those > persons who are market counterparties or intermediate customers (as defined > in the UK Financial Services Authority's rules). > > ______________________________________________ R-help@stat.math.ethz.ch mailing list 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.
