[R] usage of dsstd function in fGarch package

2011-04-21 Thread James C. McGrath (j...@brookscapitalgroup.com)
Good afternoon, I have a question about the use of the dsstd() function; The documentation provides an example: dsstd(x, mean = 0, sd = 1, nu = 5, xi = 1.5) where: mean, sd, nu, xi are the location parameter mean, scale parameter sd, shape parameter nu, skewness parameter xi Skewness can be

[R] Forced variable retention in regsubsets in 'leaps' package

2010-03-01 Thread James C. McGrath
? That is, if the best one factor model contains A, all multi-factor variants will also? In other words, variables will be added but never removed? Thank you very much. James C. McGrath [[alternative HTML version deleted]] __ R-help@r-project.org mailing

[R] inclusion of intercept=FALSE in regsubsets() in leaps package produces an error

2010-01-08 Thread James C. McGrath
Hello, I have encountered a problem which may be arising from details of my data and or the statistics I am trying to do, or may be arising due to the way leaps works internally. Unfortunately, I am not yet savvy enough to tell why. I can say that this statement works (or at least works to the