hist.Date is not exported from its namespace. Try RSiteSearch('namespace') to learn more about this (look for the R News article).
As you saw, hist() will dispatch hist.Date() when it is given a date-time argument. Read the docs again -- you failed to specify the breaks = ... argument properly. -- Bert Gunter Genentech Non-Clinical Statistics South San Francisco, CA "The business of the statistician is to catalyze the scientific learning process." - George E. P. Box > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > [EMAIL PROTECTED] > Sent: Tuesday, October 18, 2005 8:37 AM > To: r-help > Subject: [R] hist of dates > > Hi all > > I wish to draw an histogram... with dates but the following > append, i don't know where is the problem, help(hist.Date) > works and i don't see any usefull information on what i'm > doing wrong... > > > hist.Date(dt_cycles) > Error: couldn't find function "hist.Date" > > hist.date(dt_cycles) > Error: couldn't find function "hist.date" > > cycles > [1] 7 1 2 5 14 5 > > dt_cycles > dates_releves cycles > 1 2005-07-01 7 > 2 2005-07-04 1 > 3 2005-07-06 2 > 4 2005-07-11 5 > 5 2005-07-25 14 > 6 2005-07-27 5 > > dates_releves<-as.Date(dates_releves) > > hist(dates_releves,cycles) > Error in hist.Date(dates_releves, cycles) : > invalid specification of 'breaks' > > hist(dates_releves~cycles) > Error in hist.default(dates_releves ~ cycles) : > 'x' must be numeric > > > > Any ideas would be great... > thks > guillaume. > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html > ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html