SIG on Teaching Statistics using R

Yahoo! | 8 May 2013 13:10

graphing inequalities (intervals) in one varible

Dear All:

It seems a very silly question. But I never tried it before. I am teaching a college algebra class this
summer. 

I need some help with graphing intervals on the real line. For examples:

{x | -7<= x < 5 and x > 7}

{x | x > 3}

etc...

thank you very much
abou

========================

AbouEl-Makarim Aboueissa

Sozan Elsalakawy

Mohamed Agamia

246 Auburn Street, #158

Portland, ME 04103

USA

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Yahoo! | 14 Apr 2013 22:52

create a negative skewed plot (density)


Dear All: Just fix my previous email.

I am trying to show the symmetric and skewed (both left and right) distributions to my students. But I could
not create a negative skewed distribution *or negative skewed graph). I am still not be able to figure it out.

with many thanks

abou

========================

AbouEl-Makarim Aboueissa

Sozan Elsalakawy

Mohamed Agamia

246 Auburn Street, #158

Portland, ME 04103

USA

Tel: (207) 797-2724

Email: aboueiss <at> yahoo.com
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Yahoo! | 14 Apr 2013 18:25

Create and graph a negative skewed distribution (curve)

Dear All:

How I can create and plot a negative distribution (curve) in R.

with many thanks
abou

========================

AbouEl-Makarim Aboueissa

Sozan Elsalakawy

Mohamed Agamia

246 Auburn Street, #158

Portland, ME 04103

USA

Tel: (207) 797-2724

Email: aboueiss <at> yahoo.com
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Ali Zanaty | 12 Apr 2013 13:03

wielbili

 http://www.davidsonhomes.com/11a-hdnsdsjreunx-4.php 

  quinlan, ven conmigo al patio de armas; te explicare las tareas que quiero que realicen los hombres durante
mi ausencla a8776c6cab9e8275a1f7f5088fef19b5a7e7b8e7bafa6774e284343ff2af5a7aS 
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Wayne Smith | 11 Mar 2013 17:43

Re: R-sig-teaching Digest, Vol 61, Issue 1


On 3/11/2013 4:00 AM, r-sig-teaching-request <at> r-project.org wrote:
> From: Nicholas Horton <nhorton <at> smith.edu>
> To: "r-sig-teaching <at> r-project.org" <r-sig-teaching <at> r-project.org>
> Cc: Nicholas Horton <nhorton <at> smith.edu>
> Subject: [R-sig-teaching] Updates on "How to Do it in R" for the
> 	"Statistical Sleuth" and "Introduction to the Practice of	Statistics"
> Message-ID: <9D1E512A-C1B7-4C61-8ADE-A40FC09DF693 <at> smith.edu>
> Content-Type: text/plain; charset=us-ascii
>
> A group of students and faculty at Smith College have created a series of files to help describe how to
undertake analyses using R that are introduced as examples in two excellent textbooks: the Second and
Third editions of the Statistical Sleuth: A Course in Methods of Data Analysis (2002, Fred Ramsey and Dan
Schafer) and the Sixth edition of Introduction to the Practice of Statistics (2009, David S. Moore,
George P. McCabe and Bruce A. Craig).  If you are using either of these books, or would like to see
straightforward ways to undertake analyses in R for ue in intro and intermediate statistics courses,
these may be of interest.

	...[snip]...

	Excellent, excellent work.  Professor Horton, please extend
	my best to your students.

	Wayne Smith, Ph.D.
	Department of Management
	California State University, Northridge

	...[snip]...

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Nicholas Horton | 10 Mar 2013 13:53

Updates on "How to Do it in R" for the "Statistical Sleuth" and "Introduction to the Practice of Statistics"

A group of students and faculty at Smith College have created a series of files to help describe how to
undertake analyses using R that are introduced as examples in two excellent textbooks: the Second and
Third editions of the Statistical Sleuth: A Course in Methods of Data Analysis (2002, Fred Ramsey and Dan
Schafer) and the Sixth edition of Introduction to the Practice of Statistics (2009, David S. Moore,
George P. McCabe and Bruce A. Craig). If you are using either of these books, or would like to see
straightforward ways to undertake analyses in R for ue in intro and intermediate statistics courses,
these may be of interest.

The files can be found at http://www.math.smith.edu/~nhorton/sleuth and
http://www.math.smith.edu/~nhorton/ips6e, respectively. We have include both formatted pdf files
as well as the original knitr files which were used to generate the output. Knitr is an elegant, flexible
and fast means to undertake reproducible analysis and dynamic report generation within R and RStudio.

This work leverages efforts undertaken by Project MOSAIC, an NSF-funded initiative to improve the
teaching of statistics, calculus, science and computing in the undergraduate curriculum. In
particular, we utilize the mosaic package, which was written to simplify the use of R for introductory
statistics courses. More information can be found at http://www.mosaic-web.org.

We've generated these illustrated analyses for Sleuth chapters 1-13, and IPS chapters 1-6 plus 11, with
more chapters to come. Comments, suggestions and corrections welcomed.

Best wishes for the balance of the semester,

Nick

Nicholas Horton
Department of Mathematics and Statistics, Smith College
Clark Science Center, Northampton, MA 01063-0001
http://www.math.smith.edu/~nhorton

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Ali Zanaty | 8 Feb 2013 14:20

R for Numercal Analysis

Dear All R users:

I am going to teach a numerical analysis class (undergraduate level) in Summer 2013. I am wondering if
someone have R notes used in the numerical analysis methods.

thank you very much

Ali

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Nicholas Horton | 7 Feb 2013 14:43

Re: R-sig-teaching Digest, Vol 59, Issue 9


> Date: Tue, 29 Jan 2013 13:38:28 -0700
> From: Allen Cornelius <allencornelius <at> gmail.com>
> To: "r-sig-teaching <at> r-project.org" <r-sig-teaching <at> r-project.org>
> Subject: [R-sig-teaching] Data sets for teaching advanced stats with R
> 
> Knowledgable group,
> 
> I am in the process of designing an advanced statistics class for doctoral level clinical psychology
students. Their background in basic statistical concepts is OK, but they have little exposure to
statistical software. I am looking for pre existing data sets that they can explore fairly easily,
probably using R and R Commander (though some coding would be OK), to illustrate some multivariate
analyses (e.g., advanced regression, MANOVA, factor analysis). I don't expect proficiency with the
software, but enough exposure to the output of results of analyses to understand what things mean. I am
looking for multiple examples of the same analyses, so they get exposure and practice with lots of stuff. 
> 
> Allen
> 

Allen,

You might be interested in checking out the HELP study dataset, which is included as part of the "mosaic"
package in R as well as in a variety of formats from the book "SAS and R: Data Management, Statistical
Analysis and Graphics" book website at http://www.math.smith.edu/sasr/datasets.php.

This includes deidentified data from a randomized trial of n=470 subjects recruited from a detox center in
Boston who were randomized to usual care or an intervention to link them to primary care.  Approximately
200 variables are measured at each of baseline, 6 months, 12 month, 18 month and 24 month follow up.  There
are a variety of sociobehavioral, health, and health services questions which can be addressed.

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Bob | 31 Jan 2013 00:48

Handbook of Small Datasets


Just saw a mention of _Handbook of Small Datasets_.  Does anyone know
if the data files ever got cleaned up and posted on the Internet?  I
bought this when I came out and the disk included files that seemed to
be created by cut and paste from the manuscript.  This meant that the
"shape" of the data matched a typesetter's needs rather than a
statistician's.  Most of the datasets needed considerable manual work
before one could hand them off to students.  (I DID find what appeared
to be the original disfunctional versions online.)  It's really sad
that a collection that was such a good idea on paper was so poorly
implemented.  

------->  First-time AP Stats. teacher?  Help is on the way! See
http://courses.ncssm.edu/math/Stat_Inst/Stats2007/Bob%20Hayden/Relief.html
      _
     | |          Robert W. Hayden
     | |          142 Main Street
    /  |          Apartment 104
   |   |          Jaffrey, New Hampshire 03452  USA
   |   |          email: bob <at>  the site below
  /    |          website: http://statland.org
 | x   /          phone: (603) 532-7224 (home)
 ''''''

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Vincent Nijs | 30 Jan 2013 23:26

using R for a stats or marketing research class with a 'Shiny' gui

I am writing-up a free/opensource app using Shiny (from the folks at
Rstudio) for students in my marketing research class. Shiny is a great
free/opensource tool-kit (no association just a fan). All you need is R and
a modern browser (e.g., Chrome, Safari, or Firefox).

To see the analysis app in action: http://vnijs.rady.ucsd.edu:3838/marketing

Just don't click the up- or download button's as they are not yet
functional in shiny-server :) You can use the 'Load package data:'
drop-down which has links to the AER and Ecdat data. You can also
copy-and-paste data from, say, excel in the Transform tab.

To upload/download data you can install the app to run locally on your
computer. Install instructions and code are linked below (go to the bottom
of the page):

https://github.com/mostly-harmless/radyant

I am actively developing the app but it should be quite functional already.

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Allen Cornelius | 29 Jan 2013 21:38

Data sets for teaching advanced stats with R

Knowledgable group,

I am in the process of designing an advanced statistics class for doctoral level clinical psychology
students. Their background in basic statistical concepts is OK, but they have little exposure to
statistical software. I am looking for pre existing data sets that they can explore fairly easily,
probably using R and R Commander (though some coding would be OK), to illustrate some multivariate
analyses (e.g., advanced regression, MANOVA, factor analysis). I don't expect proficiency with the
software, but enough exposure to the output of results of analyses to understand what things mean. I am
looking for multiple examples of the same analyses, so they get exposure and practice with lots of stuff. 

Any suggestions for data sets included in packages or other good sources of sample multivariate data sets?

Thanks. This list is always informative. 

Allen

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