Re: [R] About normality tests...

2010-06-23 Thread Hadley Wickham
> Finally, FWIW, 1 is not considered "very large" these days; maybe > 10,000,000,000 might be... It's off topic, but I rather like Mike Driscoll's definition of big data: it's too big to fit on a single machine and must be stored on many (http://www.slideshare.net/dataspora/s-4455027). A smal

Re: [R] About normality tests...

2010-06-23 Thread Greg Snow
B > Sent: Wednesday, June 23, 2010 12:05 PM > To: r-help@r-project.org > Subject: [R] About normality tests... > > Hi all, > > I have two very large samples of data (1+ data points) and would > like to perform normality tests on it. I know that p < .05 means th

Re: [R] About normality tests...

2010-06-23 Thread Bert Gunter
elp@r-project.org Subject: Re: [R] About normality tests... On 2010-06-23 12:05, Ralf B wrote: > Hi all, > > I have two very large samples of data (1+ data points) and would > like to perform normality tests on it. I know that p< .05 means that > a data set is considered as

Re: [R] About normality tests...

2010-06-23 Thread Peter Ehlers
On 2010-06-23 12:05, Ralf B wrote: Hi all, I have two very large samples of data (1+ data points) and would like to perform normality tests on it. I know that p< .05 means that a data set is considered as not normal with any of the two tests. I am also aware that large samples tend to lead

Re: [R] About normality tests (2) ...

2010-06-23 Thread Tal Galili
look at: ?qqnorm and ?qqline Examples are in their help. Tal Contact Details:--- Contact me: tal.gal...@gmail.com | 972-52-7275845 Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) | www.r-statistics.com

[R] About normality tests (2) ...

2010-06-23 Thread Ralf B
In addition to the previous email: What plots would you suggest in addition to density / histogram plots and how can I produce them with R ? Perhaps one of you has an example ? Thanks a lot, Ralf __ R-help@r-project.org mailing list https://stat.ethz.c

[R] About normality tests...

2010-06-23 Thread Ralf B
Hi all, I have two very large samples of data (1+ data points) and would like to perform normality tests on it. I know that p < .05 means that a data set is considered as not normal with any of the two tests. I am also aware that large samples tend to lead more likely to normal results (Andy F