Posts

Basic Statistics in R

My latest publicly available R notebook created in IBM's Data Science Experience is here!  This notebook provides a tutorial on:

This notebook covers:
Descriptive statisticsFrequency and contingency tablesCorrelations and covariancest-tests; andNonparametric statistics.I hope you enjoy this notebook.  Please feel free to share and let me know your thoughts.


My latest R notebook: Basic #Statistics in R https://t.co/b3NmhNXI5X#DataScience#dsx#IBM#Bluemix#ibmaot#rstats h/t @kabacoffpic.twitter.com/AsIhr51Q5l — Venky Rao (@VRaoRao) September 13, 2017

Adding a .RData file to DSX in 5 easy steps

I created a tutorial to show how users can add a .RData file to an R Jupyter Notebook in IBM's Data Science Experience (DSX) in 5 easy steps.


My latest #R#notebook: Add a .RData file to a DSX R Notebook in 5 steps https://t.co/uznXwZWKSv#dsx#IBM#DataScience#rstats#ibmaotpic.twitter.com/plKuTwYDwt— Venky Rao (@VRaoRao) September 13, 2017



Basic graphs in R

My latest publicly available R notebook created in IBM's Data Science Experience is here!  This notebook provides a tutorial on:

Bar, box and dot plotsPie and fan chartsHistograms and kernel density plots.I hope you enjoy this notebook.  Please feel free to share and let me know your thoughts.


My latest #R#notebook: Basic Graphs in R https://t.co/o7j97GwEUL#DataScience#dsx#IBM#ibmaot h/t @kabacoffpic.twitter.com/MBfZQgg4Y0— Venky Rao (@VRaoRao) September 4, 2017

Advanced Data Preparation in R

My latest publicly available R notebook created in IBM's Data Science Experience is here!  This notebook addresses some advanced features available in R focusing on Data Preparation.

I hope you enjoy this notebook.  Please feel free to share and let me know your thoughts.

My latest #R#notebook: Advanced Data Preparation in R https://t.co/7Dvc9nCPK0#DataScience#dsx#ibmaot#IBM h/t @kabacoffpic.twitter.com/cNpP45vpoR — Venky Rao (@VRaoRao) September 2, 2017

Engine bleed air: a primer

Image
Use of Bleed Air in Aircraft Pneumatic Systems: A Primer (taken from Chapter 6 on Pneumatic Systems from the 3rd Edition of the book “Aircraft Systems” by Ian Moir and Allan Seabridge)
The use of aircraft engines as a source of high pressure, high temperature air can be understood by examining the characteristics of the turbofan engine.Modern engines “bypass” a significant portion of the mass flow past the engine and increasingly a small portion of the mass flow passes through the engine core or gas generation section.The ratio of bypass air to engine core air is called the bypass ratio and this can easily exceed 10:1 for the very latest civil engines; much higher than the 4 or 5:1 ratio for the previous generation.
The characteristics of a modern turbofan engine are shown in figure 6.1.This shows the pressure (in psi) and the temperature (in degree centigrade) at various points throughout the engine for three conditions: ground idle, take off power and in the cruise condition.


It can…

Data Preparation in R

My latest publicly available R notebook created in IBM's Data Science Experience is here!  This notebook focuses on the basics of one of the most important aspects of Data Science: Data Preparation!

I hope you enjoy this notebook.  Please feel free to share and let me know your thoughts.


My latest #R#notebook: Data Preparation in R https://t.co/5yXpG5DHFY#DataScience#dsx#ibmaot#IBM h/t @kabacoffpic.twitter.com/42j6hMRFaF — Venky Rao (@VRaoRao) August 24, 2017

Getting started with graphs in R

My next publicly available R notebook created in IBM's Data Science Experience is here!  This notebook helps users get started with basic graphs in R and contains general techniques that apply to all graphs in R except those created using the "ggplot2" library.

While only a few lines of code are needed to create graphs in R, I have provided extensive comments for each line of code so first-time R-users can also follow along.  I hope you enjoy this notebook.  Please feel free to share and let me know your thoughts.


My latest #R#notebook: Basics of #graphs in #rstatshttps://t.co/2CU6uGJGOF#DataScience#dataviz#dsx#ibmaot#IBM h/t @kabacoffpic.twitter.com/HdCCRxP8FG — Venky Rao (@VRaoRao) August 21, 2017