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Hi, I'm pretty new to R, I've just installed version 2.1.1 on Windows. I have a simple (it seems) doubt - how do I change the Console default Language ? It's set to Portuguese but I would...

Hi, I'm trying to aggregate date values using the aggregate function. For example: aggregate(data,by=list(weekdays(LM),months(LM)),FUN=length) I would also like to aggregate by year but there seems to be no years() function...

Hi, What's the best way to average dates? I though mean.POISXct would work fine but... > a [1] "2007-04-02 19:22:00 WEST" > b [1] "2007-03-17 16:23:00 WET" > class(a) [1] "POSIXt" "POSIXct...

Hi, Since "R" is a (very) generic name, I've been having some trouble searching the web for this topic. Due to this, I've just created a Google Custom Search Engine that includes several of the most relevant sites...

Hi, I have several files with data in this format: 20070102 20070102 20070106 20070201 ... The data is sorted and each line represents a date (YYYYMMDD). I would like to analyze this data using R. For instance, I would like to...

Hi again, the previous answers were great. I was able to do what was planned. Now, I would like to do the following to a matrix: || year | event | team | total || where I can have multiple "event" per "team", but each...

Hi, I'm pretty new to R and I've been having some problems filtering data in matrices. I have the following initial dataset: || year | name | varA || I have multiple values for "varA" for the same "year" and the same...

Hi, I'm having a weird result with the length() function: >a [... omited ...] [9994] NA "2003-12-03 16:37:00" "2002-06-26 18:43:00" [9997] "2005-07-04 04:00:00" "2007-02-16 22:09:00...

Hi, I'm trying to draw a 2D plot using multiple tints of red. The (simplified) setup is the following: || year | x | y || My idea is that each year is plotted with a different tint of red. Older year (lightest...

Hi again, I'm still trying to read my data but I'm having some difficulties converting it to dates. My data file has lines and in each line a single date exists in the format >2007/02/16< (without...

Just for the record, here are my steps for producing a date based histogram. Data is stored in a file where each line only has a date - 2007/02/16 >d<-readLines("filename.dat") >d<-as.Date(d, format="%Y...

Thanks. Using as.POSIXct() worked fine, length = 10000. Basically I cannot have a column of POSIXlt values in a matrix? S?rgio Nunes On 3/2/07, Petr Pikal <petr.pikal at precheza.cz> wrote: > Hi > > you stepped on a...

Please note that I do not have values, only dates that represent occurrences (one link, one date, one occurrence). This means that the same date might appear several times in different rows. Nevertheless, I think I can manage this based...

Hi, I've just created this search engine for testing today. I think that if you volunteer as a contributor (see link on the left side) you can then see and add to the list of sites. I've also...

I just seen the link you suggested - RSeek - and it uses exactly the same service from Google. The only difference is that it is not open to new contributions. Maybe Sasha could open it to volunteers. Also it seems to...