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 <dwinsemius@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
fandreacci@gmail.com

	[[alternative HTML version deleted]]

