Displaying 4 results from an estimated 4 matches for "newmean".
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newman
2011 Sep 01
2
R Help finding Mean
bob<-read.csv('shi.csv', header=T)
newmean<-matrix(0, test, dim(bob)[2]-6);a<-0; for (i in
c(4,8:(dim(bob)[2])))
{a<-a+1;newmean[,a]<-tapply(bob[,i], bob$Exam, mean)}
colnames(newmean)<-colnames(bob)[c(4,8:(dim(bob)[2]))]
Could anyone please help me what does the above code does ... I want to find
mean ... but would like to...
2007 Mar 12
1
How to avoid a for-loop?
Hi all,
as I am trying to move slowly from just "working" to "good" code, I'd
like to ask if there's a smarter way than using a for-loop in tasks like
the example below.
I need to obtain the extrema of the cumulated sum of a detrended time
series. The following code is currently used, please have a look at the
comments for my questions and remarks:
system.time({
X
2010 Aug 06
2
Pausing script to allow user input from keyboard.
...)
new$TotalIntensity <- new$a.Intensity_IntegratedIntensity_OrigGFP + new
$EstCytoIntensity
new$NucToCytoRatio <- new$a.Intensity_IntegratedIntensity_OrigGFP / new
$TotalIntensity
#creates a table that determines the means for the measurements of all
objects within an image
library(plyr)
newmean <- ddply(new, c("a.ImageNumber"), summarize,
NuclearMean=mean(a.Intensity_IntegratedIntensity_OrigGFP, trim=0.01),
CytoMean=mean(EstCytoIntensity, trim=0.01),
IntensityMean=mean(TotalIntensity, trim=0.01),
RatioMean=mean(NucToCytoRatio, trim=0.01))
# input file name
name <-...
2012 Jun 20
2
Using object as literal value in list vector
...ector of strings to name a number of list elements. For instance
#Create vector of strings
Et<- c("ACC","RTL","WHL")
MeanValues_ <- list("ACC" = 1000, "RTL" = 2000, "WHL" = 3000)
#Iterate through each element of vector
NewMeans_ <- list()
for(et in Et){
NewMeans_ <- c(NewMeans_,list(et = unlist(MeanValues_[et]) * .80 ))
}
Returns
> NewMeans_
$et
ACC
800
$et
RTL
1600
$et
WHL
2400
But I want 'et' to be the object value of et, so it would be $ACC, $RTL, and
$WHL. I realize there may be ano...