Displaying 5 results from an estimated 5 matches similar to: "svymeans question"
2005 Jun 16
1
Survey - Cluster Sampling
Dear WizaRds,
I am struggling to compute correctly a cluster sampling design. I want
to do one stage clustering with different parametric changes:
Let M be the total number of clusters in the population, and m the
number sampled. Let N be the total of elements in the population and n
the number sampled. y are the values sampled. This is my example data:
clus1 <-
2008 Sep 14
1
Problem with misclass function on tree classification
I am working through Tom Minka's lectures on Data Mining and am now on Day 32. The following
is the link: http://alumni.media.mit.edu/~tpminka/courses/36-350.2001/lectures/day32/
In order to use the functions cited I followed the instructions as follows:
Installed tree package from CRAN mirror (Ca-1)
Downloaded and sourced the file "tree.r"
Downloaded the function
2008 Mar 18
3
Partition data into clusters
Greetings R-users,
I have been using the fpc package in R to cluster my data. Speficically I am
using kmeansruns clustering.
I would like to know how I use R to partition data into clusters. What I am
doing is as follows.
# Use csv file as input
#####################
wholeset = read.csv("Spellman800genesImputed.csv")
# exclude first col (gene names)
##########################
2006 Feb 13
1
Adding dimnames to image()
Dear Colleagues,
does anybody know how to add dimnames to an image. Right now I'm using
image(as.matrix(df3), col=brewer.pal(9,"Blues"))
where df3 is a data.frame.
dimnames(as.matrix(df3)) delivers
[[1]]
[1] "RFM_A1" "RFM_A2" "RFM_A4" "RFM_A5" "RFM_A7" "RFM_B3" "RFM_B6" "RFM_B7"
2008 Feb 13
1
survey package: proportion estimate confidence intervals using svymean
Using the survey package I find it is convenient and easy to get estimated
proportions using svymean, and their corresponding estimated standard
errors. But is there any elegant/simple way to calculate corresponding
confidence intervals for those proportions? Of course +/- 1.96 s.e. is a
reasonable approximation for a 95% CI, but (incorrectly) assumes symmetrical
distribution for a proportion.