About J Singh

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So far J Singh has created 269 blog entries.

May 2017

March 2017


By | 2017-07-22T17:10:41+00:00 March 25th, 2017|r-programming|

DEFINITION AND FUNCTION The programming language R is an interactive data manipulation language that is mainly used for Data Science, (the application of scientific methods to extract insights from data). R is gaining in popularity and acclaim, and is becoming the foremost Statistical Computing language. R is a dialect of the 1980ā€™s programming language, ā€œSā€, [...]

December 2016

November 2016

Apache Spark RDD

By | 2017-07-22T17:22:25+00:00 November 8th, 2016|Spark|

In this tutorial we'll learn about RDD (Re-silent Distributed Data sets) which is the core concept of spark. RDD is an immutable (read-only) collection of objects, distributed in the cluster. RDD can be created from storage data or from other RDD by performing any operation on it. Why RDD: In Older Map Reduce paradigm, the [...]

Exception handling in Python 3.5

By | 2016-11-04T20:07:01+00:00 November 4th, 2016|Python Tutorial|

In this article I will introduce you to exception handling. In the previous articles in this series we use exception handling to cover some rare exception cases (remember the Guess the Number game?) and now it is time to explain how to do it in your own application — and when to do it. [...]

October 2016

Apache Spark Introduction

By | 2017-07-22T17:22:36+00:00 October 13th, 2016|Spark|

In this very first tutorial of Spark we are going to have an introduction of Apache Spark and its core concept RDD. What is Apache Spark? Apache Spark is an open source general purpose cluster computational engine. Spark was born out of the necessity to prove out the concept of Mesos, in the AMPLab at [...]

September 2016

Groovy – The concept of optional typing

By | 2017-07-21T21:41:36+00:00 September 28th, 2016|groovy|

We haven’t used any explicit static typing in the way that you’re familiar with in Java. We assigned strings and numbers to variables and didn’t care about the type. Besides this, Groovy implicitly assumes these variables to be of static type java.lang.Object. […]

Introduction to lambda expressions

By | 2016-09-26T16:40:22+00:00 September 26th, 2016|Core Java|

In this article I will give you a quick introduction about one of Java 8’s new features: lambda expressions. I will show you what lambda expressions are and how can you utilize this new feature. […]

Groovy IDE and editor support

By | 2017-07-21T21:41:55+00:00 September 4th, 2016|groovy|

You should look for Groovy support for IDE or editor of choice if u want to code in Groovy. Some editors only support syntax highlighting for Groovy. This can make Groovy code more convenient. […]