# [R] Simple Question: adding points to a boxplot

Farley, Robert FarleyR at metro.net
Sat Aug 8 02:33:35 CEST 2009

```Sorry to keep bothering you all.  Phil's easy fix got my code working and I have my graphic.

Just for my education: Is there a SIMPLE way to verify/ensure that the ordering of the data is the same in both dataframes?  Is this done within the plotting routines, or is it usually as a data checking process before data analysis?

==============================================
boxplot(ObsRpdData)
points(1:length(EstRpdData),EstRpdData, pch=16, col="red)
===============================================

Robert Farley
Metro
www.Metro.net

-----Original Message-----
From: Farley, Robert
Sent: Friday, August 07, 2009 15:56
To: 'Phil Spector'
Subject: RE: [R] Simple Question: adding points to a boxplot

Whoo-hoo, I get the points!

Thanks!

I guess I was over-thinking it.  :-)

Robert Farley
Metro
www.Metro.net

-----Original Message-----
From: Phil Spector [mailto:spector at stat.berkeley.edu]
Sent: Friday, August 07, 2009 15:53
To: Farley, Robert
Subject: Re: [R] Simple Question: adding points to a boxplot

Robert -
What happens when you try

points(1:length(Est1),Est1, pch=23, col="red")

- Phil Spector
Statistical Computing Facility
Department of Statistics
UC Berkeley
spector at stat.berkeley.edu

On Fri, 7 Aug 2009, Farley, Robert wrote:

> I apologize in advance for the simplicity of this question.  I use R 2-3 times a year, and I seem to forget more in the intervening months than I learn during my days of panicked reading....  I HAVE tried looking at the help resources; I'm just not very good at understanding them.
>
> I have a dataframe with 18 observations of 5 different things, and a second dataframe with and estimate for those 5 things.  I'm trying to add the estimated points to the boxplot of observations.  I THINK I'm failing because I need to decompose my estimated dataframe into two vectors.  I can't seem to figure out how to do that properly, or if I'm suffering from a different misunderstanding....
>
>
> ======================================
> The following code creates the box plot,
> but the points are not added
> ======================================
>> Obs1
>    Blue Green    Red  Gold Orange
> 1  77902 32911 117543 18245     NA
> 2  77294 32204 114927 18377     NA
> 3  75737 31484 115265 18529     NA
> 4  73366 31130 112371 14748     NA
> 5  77061 33601 118113 16910  16360
> 6  75177 32383 113825 14417  15492
> 7  76766 35697 124304 16318  16100
> 8  80378 36374 128091 15325  17636
> 9  84078 37473 138219 15769  18242
> 10 81704 37247 136345 15587  18700
> 11 84554 39134 143830 18078  21828
> 12 80411 37487 137583 18771  20844
> 13 76103 34734 131469 20329  20760
> 14 76246 34591 127921 18874  19531
> 15 72025 33645 118279 20972  21005
> 16 72295 35153 121752 18035  20217
> 17 71287 32961 121958 17768  20659
> 18 71778 32833 123990 17956  19004
>> Est1
>   Blue Green    Red  Gold Orange
> 1 72289 32444 107121 20900  21962
>> boxplot(Obs1)
>> points(Est1, pch=23, col="red")
>>
> ======================================
>
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