Re: [R] Multiple regression in R - unstandardised coefficients a

Thankyou for your replies, you've answered my question and given me more to think on. I guess it is unwise to draw any conclusions from the standardised results for these reasons. James. --On 22 August 2011 17:30 +0100 ted.hard...@wlandres.net wrote: On 22-Aug-11 15:37:40, JC Mat

[R] Multiple regression in R - unstandardised coefficients are a different sign to standardised coefficients, is this correct?

‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 Residual standard error: 0.8723 on 20337 degrees of freedom Multiple R-squared: 0.2394, Adjusted R-squared: 0.239 F-statistic: 640.2 on 10 and 20337 DF, p-value: < 2.2e-16 So having, for instance for humidity (hum), B = 28.35 +/- 1.468, while

[R] ROracle: cannot insert several columns

Hi all, I've been playing with ROracle (0.5-9) for a few days and I can't wrap my mind around this one. Here's a sample of my R (2.4.0) session. my.df<-data.frame(prd_id=c(123,456),vol_factor=c(.123,.456)) > my.df prd_id vol_factor 1123 0.123 2456 0.456 > library(ROracle) Loading

Re: [R] need help with chisq

Thank you Stephanie. This is perfect! On May 10, 12:34 pm, Stephanie Kovalchik wrote: > JC, > > If each row are the counts for a 2 x 2 contingency table - so for the   > ith contingency table you have counts for row 1 c(Y08[i],Z08[i]) and   > row 2 (Y09[i],Z09[i]) then you could u

[R] need help with chisq

I am very new to R. I have some data from a CVS stored in vdata with 4 columns labeled: X08, Y08, X09, Y09. I have created two new "columns" like so: Z08 <- (vdata$X08-vdata$Y08) Z09 <- (vdata$X09-vdata$Y09) I would like to use chisq.test for each "row" and output the p-value for each in a sto

[R] r and c++

Hi all, is there a way to integrate R language within a c++ programme? That is, is there something like an R library I can incorporate in my c++ code? Thanks, Javier __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help