search for: biopsy

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

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2011 Aug 08
1
mixed model fitting between R and SAS
Hi al, I have a dataset (see attached), which basically involves 4 treatments for a chemotherapy drug. Samples were taken from 2 biopsy locations, and biopsy were taken at 2 time points. So each subject has 4 data points (from 2 biopsy locations and 2 time points). The objective is to study treatment difference.? I used lme to fit a mixed model that uses "biopsy.site nested within pid" as a random term, and used corAR1()...
2003 Apr 09
1
'Apparently' trouble with name spaces and Sweave...
...I am using the latest MASS package (which was my first thought). I am not having problems building other packages. Any thoughts? * creating vignettes ... ERROR Error in namespaceExport(ns, exports) : undefined exports: abbey, accdeaths, Aids2, Animals, anorexia, austres, bacteria, beav1, beav2, biopsy, birthwt, Boston, cabbages, caith, Cars93, cats, cement, chem, coop, cpus, crabs, Cushings, DDT, deaths, drivers, eagles, epil, farms, fdeaths, fgl, forbes, GAGurine, galaxies, gehan, genotype, geyser, gilgais, hills, housing, immer, Insurance, leuk, lh, mammals, MASS.data.load, mcycle, mdeaths, Me...
2008 Nov 14
0
question on clustered barplot
Thank you all for your help about the encoding of my yahoo.gr. I am sending you now the original data. Hope tha you can read them. I am trying to create a clustered barplot for the following 2 variables: > h$rocbiopsy1 聽 [1] 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 聽[38] 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 聽[75] 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 聽h$hippogrouped 聽 [1] 2 4 1 4 4 1 3 1 1 4 1 3 3 1 1 3 1 2 3 2...