It worked, thanks.
Is there a way to put a trend line through the boxplots?
On Tue, Aug 9, 2011 at 10:58 AM, David Winsemius <dwinsem...@comcast.net>wrote:
>
> On Aug 9, 2011, at 9:46 AM, Fernando Andreacci wrote:
>
> I'm trying to make a monthly boxplot using this:
>>
>> boxplot(varmeasure ~ vardates)
>>
>> vardates = [1] 10/1/2010 10/1/2010 10/1/2010 10/1/2010 10/1/2010 10/1/2010
>> 10/1/2010
>> [8] 10/1/2010 10/1/2010 11/1/2010 11/1/2010 11/1/2010 11/1/2010 11/1/2010
>> ....
>>
>> varmeasure = [1] 0.0 26.0 0.2 -0.2 -1.2 -0.8 0.0 4.4 -0.6
>> -0.2 14.4 -0.2
>> [13] 4.8 4.0 2.8 3.2 3.8 3.2 -11.4 0.2 0.4 3.0 0.6
>> 6.2
>> ....
>>
>>
>> they have same size.
>>
>>
>> My problem is that R is ploting ordered by months and not by year and by
>> months
>>
>> I'm getting 1/1/2011, 10/1/2010, 11/1/2010, 2/1/2011
>>
>> How can I plot it in chronological order?
>>
>
> By converting those character strings to dates. At the moment you seem to
> believe that R has the ability to "know" that you want these strings to be
> dates.
>
> ?as.Date
> ?Dates
>
> --
>
> David Winsemius, MD
> West Hartford, CT
>
>
--
Fernando Andreacci
Biólogo
Fone +55 47 9921 4015
+55 41 9921 3934
fandrea...@gmail.com
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