Re: [R] very basic series correlation question

2014-01-05 Thread David Winsemius
On Jan 5, 2014, at 9:30 AM, Robert Baer wrote: > > On 1/4/2014 7:42 PM, Peter Turner wrote: >> Hi, I hope the following question is appropriate for the list; reflects >> that I've yet to use R and have limited statistical sensibility. >> >> I've two metal ion concentration data sets, one each f

Re: [R] very basic series correlation question

2014-01-05 Thread Bert Gunter
Robert: Do the sampling rates differ for the two locations, or over time but are the same at both locations? It sounds like the former, in which case the data are *not* paired -- e.g. one location may have been sampled monthly, the other weekly. So if this is the case, the OP would first have to

Re: [R] very basic series correlation question

2014-01-05 Thread Robert Baer
On 1/4/2014 7:42 PM, Peter Turner wrote: Hi, I hope the following question is appropriate for the list; reflects that I've yet to use R and have limited statistical sensibility. I've two metal ion concentration data sets, one each for two nearby watercourses recorded over the same period (2008

[R] very basic series correlation question

2014-01-05 Thread Peter Turner
Hi, I hope the following question is appropriate for the list; reflects that I've yet to use R and have limited statistical sensibility. I've two metal ion concentration data sets, one each for two nearby watercourses recorded over the same period (2008 to 2012), for which the sampling dates diffe