Displaying 4 results from an estimated 4 matches for "openepi".
2009 Mar 21
5
Fisher test problem
Hi, I noted a discrepancy between R and openepi when I ran a fisher test
with the same matrix. In R:
> a=matrix(c(1,2,6,17), nrow=2)
> a
[,1] [,2]
[1,] 1 6
[2,] 2 17
> fisher.test(a, conf.int=T)
Fisher's Exact Test for Count Data
data: a
p-value = 1
alternative hypothesis: true odds ratio is not equal...
2009 Mar 21
1
Fisher test accuracy in doubt
Hi, I noted a discrepancy between R and openepi when I ran a fisher test with
the same matrix. In R:
> a=matrix(c(1,2,6,17), nrow=2)
> a
[,1] [,2]
[1,] 1 6
[2,] 2 17
> fisher.test(a, conf.int=T)
Fisher's Exact Test for Count Data
data: a
p-value = 1
alternative hypothesis: true odds ratio is not equal to 1
95...
2010 Dec 29
1
Problem applying Chi-square in R and Cochran's Recommendations
Sir,
I have a problem here while applying chisquare test to the following Data (
below the subject of this mail) ...when I wanted to test the significance
using three different free statistical packages, here R, EpiInfo and
OpenEpi.
*Only OpenEpi accepts the test based on Cochran's Recommendations. *
R says " chi squared approximation may be incorrect."
Does it mean the same as what EpInfo saying " Chi square is not valid"
Regards,
Dr. B. Manoj Aravind.
*Table for analysis*...
2012 Oct 25
2
Minería de texto
Cordial Saludo
Actualmente estoy realizando una función para gráficar una nube de palabras el código que tengo es el siguiente:
library(twitteR)library(tm)library(wordcloud)library(RXKCD)library(RColorBrewer)
tweets=searchTwitter(''@afflorezr'', n=1500)
generateCorpus= function(tweets,my.stopwords=c(),min.freq){ #Install the textmining library require(tm) require(wordcloud)