Sunday, November 24, 2013

Why Statistics?

Ever met with people who ask what do Statisticians exactly do?
Here is a video of a talk given by Dr. Anil Gore at IUCAA @InnoVidya. Don't miss to enjoy..

Saturday, November 23, 2013

Thursday, November 21, 2013

Fiddling with R

Don't have R installed on your computer, no worries!! You can always fiddle around in a browser:

Wednesday, November 20, 2013

Statistics, your friend in daily life

..whether you like it or not. As we are 88% through the Celebratory year, here is a report on Statisticians partying:

Friday, November 15, 2013

Why Traffic Congestions Happen

You're on the freeway, traffic is moving along, and for no apparent reason everyone slows down. And eventually, for no apparent reason, traffic starts back up again. Hit the brakes in the simulation, and you'll see what happens:

Faster For Loops in R

Here is a way to make your for loops run faster:

Wednesday, November 13, 2013

Value of pictures

"The greatest value of a picture is when it forces us to notice what we never expected to see." 
- John W. Tukey

Beyond piquing our interest, mathematical images can also serve as tools for solving problems or even as explanations for already conjectured ideas.

Tuesday, November 12, 2013

Basics of Histograms

Histograms are used very often to show the distributions of variables. Although the basic command for histograms in R is simple, getting histogram to look exactly like you want takes getting to know a few options of the plot. Here are some ways to customize your histogram for your needs:

Maximum Likelihood versus Goodness of Fit

If we have an i.i.d. sample, which can be modeled using two different families of distributions, how do we choose the best one:

Sunday, November 10, 2013

How much a Statistician earns?

If you are planning to go to USA, which job would be most rewarding:

Evergrowing CRAN

The number of CRAN packages has been increasing rapidly recently. There were about 4200 pacakges available when R 2.15.2 was released on October 26, 2012. As of today, there are 749 additional packages in the Bioconductor repository, and hundreds more R packages on GitHub. In any case, there are easily more than 6000 open-source R packages available. Here is a report: