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Yes! That does exactly what I want it to. Thank you so much. One question, though, is it possible that the time difference be in hours instead of seconds (other than dividing by 3600)? Looking at the code, I don...
Another new question: I want to be able to subset the data based on whether or not that data point was recorded on a holiday. The is.holiday() function from the chron package would be perfect for this. However, when...
That is very helpful, and exactly what I was looking for! However, I seem to have some problems. When I ran the following line: aggregate(SunScore ~ h, data=dat, mean) I got the following output: h SunScore 1 0 136...
I couldn't find anything in the chron or timeDate packages, and a good search yielded rounding to the nearest half hour, which I don't want. The data: structure(list(Date = structure(c(1209625080, 1209641460, 1209652500, 1209676800, 1209682860, 1209692100...
I have the following data (a subset of the real data set): structure(list(Date = structure(c(1209625080, 1209641460, 1209652500, 1209676800, 1209682860, 1209692100, 1209706980, 1209722580, 1209726300, 1209739620, 1209762780, 1209765720, 1209770520, 1209791040, 1209812580, 1209829920, 1209837180, 1209848160, 1209854640, 1209859440, 1209870780, 1209887760, 1209901080...
Thanks to everyone for their help so far. It's been greatly appreciated. I have a new, but similar problem: I have data that I have broken down by hour (median/mean for each hour). I would like to break...
Hmm, I guess that's not exactly what I needed. It's my fault; you gave me what I asked for, I was just asking for the wrong thing. What I'm hoping to do is something similar to: aggregate...
Man, R has a steep learning curve (but I suppose you all know this). I have very little programming knowledge, so when I search for answers to my questions, I struggle with making sense of a lot of the pages...
Oh, whoops. When I responded the first time, I had done dput(head(Sunday, 100)) too, but it didn't look useful. It was only just now that I saw that it basically prints out the vectors. Sorry about that...
Here is a part of the data for the first two questions: > head(Sunday,100) SunDate SunTime SunScore 1 5/9/2010 0:00 0:00 127 2 6/12/2011 0:00 0:00 125 3 6/15/2008...
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