Sorry for spamming the list...
I noticed that if you first produce a date histogram with the hist() function, like this: basic.histogram <- hist(my.data$date, breaks = "months", plot = FALSE) and then try to transfer the breaks from that histogram to a lattice equivalent, like this: histogram(~date, data=my.data, breaks=basic.histogram$breaks) then I get a histogram that looks exactly like the original one, except the bins are not placed correctly on the x-axis. In my case they were all shifted almost a year to the right. Does anyone know why this happened and if there is a way to deal with it? Many thanks Ola 2008/5/9 Ola Caster <[EMAIL PROTECTED]>: > > > Thanks a lot Deepayan. Could you please inform me what update are you > referring to, and give me some very vague sense when it might happen (within > weeks, months, or years)? > > Many thanks > Ola > > 2008/5/8 Deepayan Sarkar <[EMAIL PROTECTED]>: > > On 5/8/08, Ola Caster <[EMAIL PROTECTED]> wrote: >> > Dear help list, >> > >> > Is it possible to draw lattice histograms (i.e. use the histogram() >> function >> > and not the hist() function) with objects of class "Date"? >> >> Sort of. The default calculation of 'breaks' doesn't work, so >> >> histogram(~date, data=my.data) >> >> will currently fail (I will fix this in the next update). However, >> >> histogram(~date, data=my.data, breaks = 10) >> histogram(~date, data=my.data, breaks = "fd") >> >> etc., should work. The help page for histogram is somewhat ambiguous; it >> says: >> >> breaks: >> >> [...] >> >> Other valid values >> of 'breaks' are those of the 'breaks' argument in 'hist'. >> This allows specification of 'breaks' as an integer giving >> the number of bins (similar to 'nint'), as a character string >> denoting a method, and as a function. >> >> What is meant here is that valid values of breaks in 'hist.default' >> will work, not those for any other methods. In particular, breaks = >> "months" will not work. >> >> -Deepayan >> >> > I've tried solutions like >> > >> > histogram(~date, data=my.data, breaks="months") >> > >> > but it doesn't seem to work. >> > >> > Any suggestions are welcome. >> > >> > Many thanks >> > Ola Caster >> > > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.