[R] hist of dates

From: <herodote_at_oreka.com>
Date: Wed 19 Oct 2005 - 01:37:13 EST


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.



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