August 2015 – Page 2 – DECISION STATS

More Hispanic Data Scientists please

Our amazing Spanish language volunteer Isabel came to India to learn Sitar but also helps in her spare time to translate our presentations in Spanish.

We think the Spanish speaking world could do with more data scientists- to help us with Isabel helped volunteer with translation for Python R and SAS languages in Science. Yes we think science needs more polyglots.

Have a look Amigos and Buno Data Science

Gracias Isabel

Python in Spanish

R in Spanish

SAS in Spanish

Using RCPP #rstats to make coding faster in R

Our amazing Summer Intern Farheen made this remarkable presentation to help us teach coding faster in R using C plus plus

Infographic Predictive Analytics Conference

This is a featured post by our sponsors

Using ggplot in Python #python #dataviz

Based on the open source project at http://ggplot.yhathq.com/ here is small training ppt created by one of our wonderful summer interns Sarah

Hat Tip to http://www.amazon.com/Grammar-Graphics-Statistics-Computing/dp/0387245448

Leland Wilkinson the inventor of Grammar of Graphics now works for Tableau Software

Get you app on Droid

1 Download and Install IntelliJ IDEA

https://www.jetbrains.com/idea/help/basics-and-installation.html#d1847332e131

2 To update which version of Java you want

$ sudo update-alternatives --config java

3 Download and Install Android Studio

http://developer.android.com/sdk/installing/index.html?pkg=studio

4 Learn about basic app building from MIT App Builder ( its a GUI so relax)

http://ai2.appinventor.mit.edu/

5 Give up building yourself and post for a developer for your Android app at http://www.appfutura.com/

Sources-

http://askubuntu.com/questions/64329/how-to-replace-openjdk-6-with-openjdk-7

Installing and Using Spark easily with Python or R on Ubuntu #python #rstats

Download spark from https://spark.apache.org/downloads.html (say to home/ajay/Desktop/BDA )
Change to the directory from terminal cd /home/ajay/Desktop/BDA
Unzip the file
```
tar -xvf spark-1.4.1-bin-hadoop2.6.tgz
```
Change to the directory created ( say you unizpped spark file above and renamed it spark) ajay@Inspiron-3542:~/Desktop/BDA$ cd spark
Run the command ./bin/pyspark
To look at local jobs see http://192.168.1.18:4040/jobs/ (or based on what you get from your terminal after running command in step 4)

to do this with R just use .bin/sparkR

Sources- http://stackoverflow.com/questions/30483409/installing-apache-spark-on-ubuntu-14-04

Traps to avoid if you are a grey hat hacker

Bait and Switch – used to plant embedded malware or logging systems https://en.wikipedia.org/wiki/Bait-and-switch the action (generally illegal) of advertising goods which are an apparent bargain, with the intention of substituting inferior or more expensive goods. It can be avoided by periodically changing your hardware and software with a reliance for open source and open market and of course by avoiding things that are too good to be true.
The Honey Trap –https://en.wikipedia.org/wiki/Honey_trapping

a stratagem in which an attractive person entices another person into revealing information or doing something unwise. This one got Julian Assange
The Honey Pot –https://en.wikipedia.org/wiki/Honeypot_(computing) a honeypot is a trap set to detect, deflect, or, in some manner, counteract attempts at unauthorized use of information systems. Generally, a honeypot consists of a computer, data, or a network site that appears to be part of a network, but is actually isolated and monitored, and which seems to contain information or a resource of value to attackers. This is similar to the police baiting a criminal and then conducting undercover surveillance. This one got Sabu.
The Tax Trap- This one got Al Capone. Since there is no evidence against your cyber activities they put you in tax court based on the mismatch of your income and expenditure. It can be avoided by creating appropriate legal mechanisms including corporations.
The Informer Trap– God can protect you against your enemies but not your friends. This can be avoided by delineating the personal private and professional life of your activities in different compartments, hardware and virtual machines including your own personality and brain. Reveal you true identity to boast and you will end up a Reservoir Dog