[R] boxplot

[John Kane]

Hi Janh,

When you say that you have "multiple data sets of unequal sample sizes" are you speaking of the same kind of data"  For example are you speaking of data from a set of experiments where the variables measured are all the same and where when you graph them you expect the same x and y scales? 

Or are you talking about essentilly independent data sets that it makes sense to graph in a grid ?  


John Kane
Kingston ON Canada


> -----Original Message-----
> From: annijanh at gmail.com
> Sent: Fri, 22 Mar 2013 10:46:21 -0400
> To: dcarlson at tamu.edu
> Subject: Re: [R] boxplot
> 
> Hello All,
> 
> On the subject of boxplots, I have multiple data sets of unequal sample
> sizes and was wondering what would be the most efficient way to read in
> the
> data and plot side-by-side boxplots, with options for controlling the
> orientation of the plots (i.e. vertical or horizontal) and the spacing?
> Your
> assistance is greatly appreciated, but please try to be explicit as I am
> no
> R expert.  Thanks
> 
> Janh
> 
> 
> 
> On Thu, Mar 21, 2013 at 9:19 AM, David L Carlson <dcarlson at tamu.edu>
> wrote:
> 
>> Your variable loc_type combines information from two variables (loc and
>> type). Since you are subsetting on loc, why not just plot by type?
>> 
>> boxplot(var1~type, data[data$loc=="nice",])
>> 
>> ----------------------------------------------
>> David L Carlson
>> Associate Professor of Anthropology
>> Texas A&M University
>> College Station, TX 77843-4352
>> 
>>> -----Original Message-----
>>> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
>>> project.org] On Behalf Of Jim Lemon
>>> Sent: Thursday, March 21, 2013 4:05 AM
>>> To: carol white
>>> Cc: r-help at stat.math.ethz.ch
>>> Subject: Re: [R] boxplot
>>> 
>>> On 03/21/2013 07:40 PM, carol white wrote:
>>>> Hi,
>>>> It must be an easy question but how to boxplot a subset of data:
>>>> 
>>>> data = read.table("my_data.txt", header = T)
>>>> boxplot(data$var1[data$loc == "nice"]~data$loc_type[data$loc ==
>>> "nice"])
>>>> #in this case, i want to display only the boxplot loc == "nice"
>>>> #doesn't display the boxplot of only loc == "nice". It also displays
>>> loc == "mice"
>>>> 
>>> Hi Carol,
>>> It's them old factors sneakin' up on you. Try this:
>>> 
>>> boxplot(data$var1[data$loc == "nice"]~
>>>   as.character(data$loc_type[data$loc == "nice"]))
>>> 
>>> Jim
>>> 
>>> ______________________________________________
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>>> guide.html
>>> and provide commented, minimal, self-contained, reproducible code.
>> 
>> ______________________________________________
>> R-help at 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.
>> 
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at 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.

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