Is the solution this simple? sdata$VaR < sdata$DdtdAbs & sdata$DdtdDuration >= 1
Regards, Johan 2007/1/9, Benjamin Dickgiesser <[EMAIL PROTECTED]>: > I suppose this doesn't work for the same reason as > sdata$VaR < sdata$DdtdAbs && sdata$DdtdDuration >= 1 > > does only return FALSE and not a vector of TRUE and FALSE as > > sdata$VaR < sdata$DdtdAbs > > would return. > > Is there a ways around this? > Benjamin > > On 1/9/07, Benjamin Dickgiesser <[EMAIL PROTECTED]> wrote: > > Hi all, > > > > why doesn't something like this does not work? > > > > speedy <- > > (sdata$VaR < sdata$DdtdAbs) && sdata$DdtdDuration >= > > qpois(pct,lambda) && > > sdata$Ddtd > MinDD > > > > or sdata$Ddtd[sdata$Ddtd > 0 && sdata$VaR < sdata$DdtdAbs] > > > > sdata looks like this: > > > > dataId date value Ddtd VaR DdtdAbs DdtdDuration > > 18948 79637 2004-07-27 10085.10 NA NA 0.00 > > 0 > > 18949 79638 2004-07-28 10117.10 NA NA 0.00 > > 0 > > 18950 79639 2004-07-29 10129.20 NA NA 0.00 > > 0 > > 18951 79640 2004-07-30 10139.70 NA NA 0.00 > > 0 > > 18952 79641 2004-08-02 10179.20 NA NA 0.00 > > 0 > > 18953 79642 2004-08-03 10120.20 0.579613329 336.060090 59.00 > > 1 > > 18954 79643 2004-08-04 10126.50 NA NA 0.00 > > 0 > > 18955 79644 2004-08-05 9963.03 1.614279366 334.306978 163.47 > > 1 > > 18956 79645 2004-08-06 9815.33 3.072828717 386.173057 311.17 > > 2 > > 18957 79646 2004-08-09 9814.66 3.079445020 420.167049 311.84 > > 3 > > 18958 79647 2004-08-10 9944.67 NA NA 0.00 > > 0 > > 18959 79648 2004-08-11 9938.32 0.063853300 328.315992 6.35 > > 1 > > 18960 79649 2004-08-12 9814.59 1.308037371 379.182568 130.08 > > 2 > > > > I am trying to select rows from the data.frame which have Ddtd > x, > > VaR < DdtdAbs and DdtdDuration > z. > > > > Thank you, > > Benjamin > > > > ______________________________________________ > 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. > -- Johan Sandblom N8, MRC, Karolinska sjh t +46851776108 17176 Stockholm m +46735521477 Sweden "What is wanted is not the will to believe, but the will to find out, which is the exact opposite" - Bertrand Russell ______________________________________________ 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.