Re: [R] periodic time series

2010-11-29 Thread pengcafe
http://r.789695.n4.nabble.com/file/n3063697/sample.xlsx sample.xlsx So, here are some sample data. 1st column is a label for 12 hour long days 2nd one a time stamp The rest are the actual measured values for 4 different groups. What would be the best model for such periodic data? Thanks,

Re: [R] periodic time series

2010-11-29 Thread Mike Marchywka
Date: Sun, 28 Nov 2010 14:48:54 -0800 From: fek...@yahoo.co.uk To: r-help@r-project.org Subject: [R] periodic time series Hi all, A beginner's question: I have to analyse univariate, strongly periodic data collected every hour for a period

[R] periodic time series

2010-11-28 Thread pengcafe
Hi all, A beginner's question: I have to analyse univariate, strongly periodic data collected every hour for a period of 1 week and I need to compare 5 different groups for significant differences between them. Is there a better way to do this in R, other than pairwise t-tests of summary

Re: [R] periodic time series

2010-11-28 Thread Wu Gong
Hi Andy, If you could provide a sample data set, it would help others to give a solution. I suggest look at the data and select a model, then anova. Take group as one variable, record time (1 to 24 ) as the second variable and the week day (Monday to Friday) as the third variable. Then test the