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6 results for “from:Rob Cassidy”

small scales in fwdmsa
Rob Cassidy · Mar 21, 2012 · r-help

sorry I mistyped the "fs.MSA(by364.data)" in the previous post. -- View this message in context: http://r.789695.n4.nabble.com/small-scales-in-fwdmsa-tp4493479p4493490.html Sent from the R help mailing list archive at Nabble.com.

Help converting a data.frame to ordered factors
Rob Cassidy · May 3, 2011 · r-help

Thanks, Phil. I could have sworn that I tried that (several times). It works perfectly, of course. Thanks again, Robert -- View this message in context: http://r.789695.n4.nabble.com/Help-converting-a-data-frame-to-ordered-factors-tp3490838p3492705...

Help converting a data.frame to ordered factors
Rob Cassidy · May 3, 2011 · r-help

Hi again, Now that I have the data.frame as ordered factors, when I try to transpose it, I lose the factor orders. > datfact<-data.frame(c1,c2,c96) > sapply(datfact, class) c1 c2 c96 [1,] "ordered" "ordered" "ordered" [2...

small scales in fwdmsa
Rob Cassidy · Mar 21, 2012 · r-help

I'm using the fwdmsa package to identify deviant cases in a Mokken scale analysis. I've run into a problem. When I use scales comprising a few items, iI tend to get an error: Error in y[order(res...

fwdmsa package: Error in search.normal(X[samp, ], verbose = FALSE) : At least one item has no variance
Rob Cassidy · Mar 21, 2012 · r-help

I'm using the fwdmsa package to identify deviant cases in a Mokken scale analysis. I've run into a problem., separate from the one I posted previously. The problem comes with items that are "easy" by IRT standards. A...

fwdmsa package: Error in search.normal(X[samp, ], verbose = FALSE) : At least one item has no variance
Rob Cassidy · Mar 21, 2012 · r-help

I'm using the fwdmsa package to identify deviant cases in a Mokken scale analysis. I've run into a problem., separate from the one I posted previously. The problem comes with items that are "easy" by IRT standards. A...

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