Articles

How to do this graph using R

Enayetur Raheem — Tue, 27 Apr 2010 03:44:29 +0000

Deck:

R statistics, R package, With example for expressions, text, lines, density plots, shading

Author(s):

Enayetur Raheem

I am showing three examples that will help an average R user to create beautiful graphs. The interesting (may be useful) parts of these examples are the use of some very smart but tricky functions to, for example, add a Greek symbol on a plot, add a title to a plot with some mathematical symbols. In these examples I used expression and paste functions repeatedly. For more examples please see this site.

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Main Image:

poisson-lam2.png

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Poisson distribution with rate=2

GRE (Graduate Record Examinations)

Ehsan Karim — Fri, 22 Jan 2010 15:28:06 +0000

Deck:

Some suggestions and guidelines

Author(s):

Ehsan Karim

GRE is NOT an English proficiency test like ielts / toefl: its a graduate admission measurement test (measures verbal reasoning, quantitative reasoning, critical thinking, and analytical writing skills), based on which scholarship is determined, especially in U.S. universities.

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Main Image:

GRE_prep_guide.jpg

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From the Internet

Emacs, LaTeX and ESS: Shortcuts for Beginners

Enayetur Raheem — Wed, 30 Dec 2009 00:20:06 +0000

Deck:

Emacs, ESS and latex tips

Author(s):

Enayetur Raheem

A list of most frequently used Emacs keyboard shortcuts are given. Shortcuts for Emacs and also for ESS are listed. This file will be updated as I learn more about Emacs and ESS. I was inspired from this site to create this page. I plan to provide more useful shortcuts suitable for those who have just started using Emacs.

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A list of most frequently used Emacs keyboard shortcuts are given. Shortcuts for Emacs and also for ESS are listed. This file will be updated as I learn more about Emacs and ESS.

Main Image:

emacs.png

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By Enayetur Raheem

Using gedit or Rgedit with R

Enayetur Raheem — Sat, 26 Dec 2009 17:17:41 +0000

Deck:

Editor for R statistical package

Author(s):

Enayetur Raheem

Recently I've made the switch from Windows Vista to Ubuntu Linux. After switching, the first thing I needed was an editor for R package. R is my favourite and most-used environment for statistical computing. It is free and simple yet a very powerful tool for simple to high profile statistical computing.

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Main Image:

r_and_gedit.png

Main Image Credit:

Image created by Enayetur Raheem

A Ready-made Beamer Presentation Template

Rifat Jahan — Thu, 17 Dec 2009 15:02:04 +0000

Deck:

A latex presentation template using Beamer, Version 1.1, May 2, 2010

Author(s):

Rifat Jahan

In this article, a beamer template is provided which can be used as is or with minimum modification. Beamer is used among the scientific community to produce beautiful and fancy presentations where the content is predominantly mathematical. Powerpoint is perhaps better suited for non-mathematical presentations, whereas beamer shines in there.

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A ready made beamer template is provided for instant use with minimal modification. Just put your title, name, and slides and you are good to go.

Main Image:

beamer_slide_photo.gif

Main Image Credit:

Image created by Enayetur Raheem

Installing LaTeX on a windows machine

Enayetur Raheem — Tue, 15 Dec 2009 21:05:37 +0000

Deck:

MikTeX, Ghostscript, GSView and WinEdt(R)

Author(s):

Enayetur Raheem

There are probably millions of pages of instructions available on the Internet about how to install LaTeX on an Windows machine. Still, I am writing another one because I always find people around me who needs help in installing the packages.

LaTeX as defined in Wikipedia, is a document preparation system. LaTeX is most widely used by mathematicians, scientists, engineers, philosophers, economists and other scholars in academia and the commercial world, and other professionals.

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There are probably millions of pages of instructions available to install LaTeX on an Windows machine. Still, I am writing another one because I always find people around me who needs help in installing the packages.

Main Image:

miktex.gif

Main Image Credit:

Enayetur Raheem

Applying for Admission in Canadian Universities

Ehsan Karim — Fri, 11 Dec 2009 14:07:42 +0000

Author(s):

Ehsan Karim

The Canadian education system encompasses both publicly-funded and private universities. Education institutions are not officially ranked in Canada, as all Canadian educational institutions offer high quality programs. Check the world Rankings instead!

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Main Image:

study_in_canada_100_2825.jpg

Main Image Credit:

Enayet Raheem

For Today’s Graduate, Just One Word: Statistics

Stattler — Fri, 11 Dec 2009 01:18:46 +0000

Author(s):

Enayetur Raheem

Here is an encouraging post in New York Times newspaper about the prospect of statistics as a subject matter that will dominate the world in the coming years. Please spend some time to read it. It is a must -read for those studying statistics, particularly Applied Statistics in Bangladesh. The main report is written by Steve Lohr for the NY Times, published on August 5, 2009. Please read below.

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Here is an encouraging post in New York Times newspaper about the prospect of statistics as a subject matter that will dominate the world in the coming years.

On probability distribution

Enayetur Raheem — Thu, 10 Dec 2009 16:23:02 +0000

Author(s):

Enayetur Raheem

Probability distribution is central to anything that you might think about statistics. There are many terms in statistics which are not readily understandable when you hear them for the first time. As the time passes, you would probably pretend to have understood those mysterious words, yet, they might not resonate very well to you. I can reasonably assume that there are people who would not visualize many things on the first attempt. Probability distribution is one of those terms in statistics that you will hear almost all the time, but would probably find somewhat inconvenient to grasp.

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Probability distribution is central to anything that you might think about statistics. There are many terms in statistics which are not readily understandable when you hear them for the first time.

What do statisticians do?

Stattler — Fri, 11 Dec 2009 01:20:37 +0000

Author(s):

Stattler.com Staff

Statisticians help determine the sampling and data collection methods, monitor the execution of the study and the processing of data, and advise on the strengths and limitations of the results. They must understand the nature of uncertainties and be able to draw conclusions in the context of particular statistical applications.

Surveys: Survey statisticians collect information from a carefully specified sample and extend the results to an entire population. Sample surveys might be used to:

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Statisticians help determine the sampling and data collection methods, monitor the execution of the study and the processing of data, and advise on the strengths and limitations of the results.

Main Image:

Planche_de_Galton.jpg