[R] ls.diag and lsfit very basic question

2011-01-22 Thread MM
Hello,

Is the "std.dev" component of ls.diag( lsfit(x,y) ) the sample standard
deviation of the residuals of the fit?

I have
  ls.diag(lsfit(xx,yy))$std.dev
different from
  sd(lsfit(xx,yy)$residuals)

where xx and yy are vectors of 5 elements.

Regards,

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[R] An introduction to R: 6.3.2

2011-01-23 Thread MM

The $ notation, such as accountants$statef, 


shouldn't it be 


The $ notation, such as accountants$home, 


instead?

regards,

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[R] runsd {caTools} crashes R 64bit on winxp64bit with a very large vector

2011-01-29 Thread MM
Hello

I have a 3.5 million elements numeric vector x. I'm trying to calculate the
rolling std dev of the previous 144 elements.

 

rsd144<-runsd(x, 144, center=0, endrule="NA")

 

this crashes R (ie on the console disappears and the Rgui.exe process is not
there anymore)

 

with smaller vectors, the crash does not occur.

 

regards,


[[alternative HTML version deleted]]

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