search for: lesion

Displaying 9 results from an estimated 9 matches for "lesion".

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2005 Apr 05
5
Help with three-way anova
Hi I have data from 12 subjects. The measurement is log(expression) of a particular gene and can be assumed to be normally distributed. The 12 subjects are divided into the following groups: Infected, Vaccinated, Lesions - 3 measurements Infected, Vaccintaed, No Lesions - 2 measurements Infected, Not Vaccinated, Lesions - 4 measurements Uninfected, Not Vaccinated, No Lesions - 3 measurements Although presence/absence of lesions could be considered to be a phenotype, here I would like to use it as a factor. This...
2010 Mar 14
2
code rows depending on the value of other rows in multilevel dataframe
I have a multilevel dataframe (df): ID Date Segment Slice Tract Lesion 1 CSPP005 12/4/2007 1 1 LCST 0 2 CSPP005 12/4/2007 1 1 LPC 2 3 CSPP005 12/4/2007 1 1 RPC 3 4 CSPP005 12/4/2007 1 1 RCST 1 5 CSPP005 12/4/2007 1 1 LGM 0 6 CSPP005 12/4/2007 1...
2005 Jan 18
1
Interpretation of randomForest results
> From: luk > > I got the following results when I run radomForest with below > commands: > > qair <- read.table("train10.dat", header = T) > oz.rf <- randomForest(LESION ~ ., data = qair, ntree = 220, > importance = TRUE) > print(oz.rf) > > Call: > randomForest.formula(x = LESION ~ ., data = qair, ntree = > 220, importance = TRUE) > Type of random forest: classification > Number of trees: 220 &g...
2010 Aug 27
0
how to use glm for a time course data set
Dear list, I used glm to analyze the effect of treatment, measurement-methods etc. on lesion size in a time course experiments. Could anyone points me out how to extract detailed comparisons of interest? For example: Measurement.T2.M6 vs. Measurement.T2.Baseline, Or even Measurement.T2.M6.Treatment vs. Measurement.T2.M6.placebo (I did not include Treatment as a factor in the query below...
2006 Sep 28
3
complex plots using layout()
...ines(lowess(x,y1),col=2) par(mar=c(0,3,1,1)) barplot(xhist$counts, axes=FALSE, ylim=c(0, top1), space=0) par(mar=c(3,0,1,1)) barplot(y1hist$counts, axes=FALSE, xlim=c(0, top1), space=0, horiz=TRUE) par(mar=c(3,3,1,1)) plot(x, y2, xlim=xrange, ylim=y2range, xlab="Age", ylab="Numer of Lesions") lines(lowess(x,y2),col=2) par(mar=c(0,3,1,1)) barplot(xhist$counts, axes=FALSE, ylim=c(0, top2), space=0) par(mar=c(3,0,1,1)) barplot(y2hist$counts, axes=FALSE, xlim=c(0, top2), space=0, horiz=TRUE) par(def.par) ================================================================ Sincerel...
2011 Aug 31
2
Treat an Unquoted Character String as a Data Frame
I have several datasets that come from different studies (fv02 and fv03), they represent different levels (patients and lesions), and they have different patient populations (itt, mitt, mitt3). I wanted to write some code that would pass my three requirements into a function I wrote, produce the output, but not have to require me to also pass a unique plot title or output filename for each function call. The title and fi...
2007 Jun 29
4
Dominant eigenvector displayed as third (Marco Visser)
...appens so I will know if it can occur again. Thanks for any comments, Marco Visser Comment: In Matlab the the dominant eigenvetor and eigenvalue of the described matrix are given as the sixth. Again no idea why. reference J. A. Powell, I. Slapnicar and W. van der Werf. Epidemic spread of a lesion-forming plant pathogen - analysis of a mechanistic model with infinite age structure. (2005) Linear Algebra and its Applications 298. p 117-140. ____________________________________________________________________________________Ready for the edge of your seat? Check out tonight...
2009 Oct 22
1
Automatization of non-linear regression
...edplantpath/topics/Rmodules/Doc1/05_Nonlinear_regression.html > ## Input the data that include the variables time, plant ID, and severity > time <- c(seq(0,10),seq(0,10),seq(0,10)) > plant <- c(rep(1,11),rep(2,11),rep(3,11)) > > ## Severity represents the number of > ## lesions on the leaf surface, standardized > ## as a proportion of the maximum > severity <- c( + 42,51,59,64,76,93,106,125,149,171,199, + 40,49,58,72,84,103,122,138,162,187,209, + 41,49,57,71,89,112,146,174,218,250,288)/288 > data1 <- data.frame( + cbind( +...
2005 Oct 01
1
Reliability of samba
When I mount samba partitions using smbmount on a Linux box under /mnt/linnet_g and run this command: find /mnt/linnet_g/ -type f|xargs wc I get a number of errors which look like this: wc: /mnt/linnet_g/analysis.lesion/b19o61/b61o19.9/b61o18.9-042303.332.cbin: Input/output error What does this mean? The error is repeatable in a I am using samba-3.0.14a-6 on a Debian machine, with kernel 2.6.8. How does smbclient handle the type of errors which produce these results? I have seen a few explanations, but I can...