[R] Time-series analysis with treatment effects - statistical approach

2011-06-21 Thread J.Morgenroth
Hello all R listers, I'm struggling to select an appropriate statistical method for my data set. I have collected soil moisture measurements every hour for 2 years. There are 75 sensors taking these automated measurements, spread evenly across 4 treatments and a control. I'm not interested in

Re: [R] Time-series analysis with treatment effects - statistical approach

2011-06-22 Thread J.Morgenroth
Hi Mike, here's a sample of my data so that you get an idea what I'm working with. http://r.789695.n4.nabble.com/file/n3618615/SampleDataSet.txt SampleDataSet.txt Also, I've uploaded an image showing a sample graph of daily soil moisture by treatment. The legend shows IP, IP+, PP, PP+ which

Re: [R] Time-series analysis with treatment effects - statistical approach

2011-06-23 Thread J.Morgenroth
Mike Marchywka wrote: I discovered a way to do repetitive tasks that can be concisely specified using something called a computer. Now that's funny :) There were not controlled tests. It was a field experiment testing the effects that various pavement designs have on underlying soil