Re: [R] Data analysis: normal approximation for binomial

2011-11-21 Thread John Kane
#x27;s a little like early factor analysis when rotate the factors actually meant rotate the glass plates. --- On Sun, 11/20/11, Colstat wrote: From: Colstat Subject: Re: [R] Data analysis: normal approximation for binomial To: "John Kane" Cc: r-help@r-project.org Received: Sunday, No

Re: [R] Data analysis: normal approximation for binomial

2011-11-20 Thread Colstat
&hl=en&ei=nQHJTo7LPIrf0gHxs6Aq&sa=X&oi=book_result&ct=result&resnum=2&ved=0CC0Q6AEwAQ#v=onepage&q=z-test%20with%20continuity%20correction&f=false > > A print source that, IIRC, has a discussion of this is "Hayes, W. (1981. > Statistics. 3rd Ed., Holt

Re: [R] Data analysis: normal approximation for binomial

2011-11-20 Thread Colstat
Hey, Joshua Thank so much for your quick response. Those examples you produced are very good, I'm pretty impressed by the graphs. When I ran the last line, I hit an error, so I ran what's inside summary(), it give me Error: could not find function "lmer" Something with the package "lme4"? Colin

Re: [R] Data analysis: normal approximation for binomial

2011-11-20 Thread John Kane
wAQ#v=onepage&q=z-test%20with%20continuity%20correction&f=false A print source that, IIRC, has a discussion of this is "Hayes, W. (1981. Statistics. 3rd Ed., Holt Rinehart and Winston Have fun --- On Sat, 11/19/11, Colstat wrote: > From: Colstat > Subject: [R] Data analysis: nor

Re: [R] Data analysis: normal approximation for binomial

2011-11-19 Thread Joshua Wiley
Hi Colin, I have never heard of a binomial distribution z statistic with (or without for that matter) a continuity correction, but I am not a statistician. Other's may have some ideas there. As for other ways to analyze the data, I skimmed through the article and brought the data and played arou

Re: [R] Data analysis: normal approximation for binomial

2011-11-19 Thread Joshua Wiley
Hi, I am not clear what your goal is. There is a variety of data there. You could look at t-test differences in preIntensity broken down by sex, you could use regression looking at postIntensity controlling for preIntensity and explained by age, you could Why are you analyzing data from an a

[R] Data analysis: normal approximation for binomial

2011-11-19 Thread Colstat
Dear R experts, I am trying to analyze data from an article, the data looks like this Patient Age Sex Aura preCSM preFreq preIntensity postFreq postIntensity postOutcome 1 47 F A 4 6 9 2 8 SD 2 40 F A/N 5 8 9 0 0 E 3 49 M N 5 8 9 2 6 SD 4 40 F A 5 3 10 0 0 E 5 42 F N 5 4 9 0 0 E 6 35 F N 5 8 9 12