search for: modelvar

Displaying 3 results from an estimated 3 matches for "modelvar".

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2009 Jul 02
1
Problem with groupedData and lme
...ion of a groupedData object in the lme() function. Executing the following function > applyScalingSimp <- function(input.population) > { > ## GA is a time value > varInOrder <- c("GA","weight","grouping","sex") > modelVar <- c("GA_","VARI1","id","v51026") > names(modelVar) <- varInOrder > > ## The following re-expresses the time in the spline basis. > GASpline <- rcspline.eval(input.population[,modelVar["GA"]], >...
2010 Sep 28
1
95% confidence intercal with glm
Hi I had to use a glm instead of my basic lm on some data due to unconstant variance. now, when I plot the model over the data, how can I easily get the 95% confidence interval that sormally coming from: > yv <- predict(modelVar,list(aveLength=xv),int="c") > matlines(xv,yv,lty=c(1,2,2)) There is no "interval" argument to pass to the predict function when using a glm, so I was wondering if I had to use an other function thanks -- View this message in context: http://r.789695.n4.nabble.co...
2006 Jun 07
3
trouble wtih webstore schema, handling product variations
Hi Railers, Does anyone have any guidance on setting up a simple way to handle product variations (e.g garment size/color)? Initially, I had thought that I would make a variation model which defined the extra bits, but it seems quite inflexible especially so if a store were to sell non-clothing items that also had variants of one flavor or another. product has_many variations title