# What The Data Says Blog

mydatasciencenotes.blogspot.com
There is a vast world of Data out there.Let's learn to clean, wrangle and read the Data. I am learning and I am writing it down in my notebook. You want to take a peek? You are most welcome! If I am doing it wrong, please point it out. You have a different idea? Please share with me. Together we can learn, share and understand 'What the data says'!

## Sentiment Analysis On Movie Reviews In R

2018-10-11 18:52
Text Analytics is an interesting but tricky subject. It is not easy to decipher sentiments from some words. It gets complex since we, people are so good at sarcasm. So, let's take some baby… Read More

## Database Operations In R Using RSQLite

2018-07-20 22:42
I needed a break from the neural network and even machine learning algorithms. All those formulae for mathematical representation, the complexity of all those algorithms was getting on my ne… Read More

## Mathematical Representation And Compute Cost Of A Feed-Forward Neural Network In R

2018-07-12 00:43
What is a FeedForward Neural Network?In FeedForward Neural Network, the Perceptrons are arranged in layers, with the first layer taking in inputs (Input Layer) and the last layer producing o… Read More

## Read .mat Files In R Using Library "R.matlab"

2018-07-11 20:19
While practicing the Neural Network exercise from Andrew Ng course in R, I got stuck at the first step. The data file is in .mat format and I wanted to read the files in… Read More

## Hand-Written Digit Recognition In R Using Neuralnet

2018-06-18 22:28
It is the high time now that I slide my feet in the vast ocean of Neural Network. I was avoiding it for some time.At the first place, I wanted to use Neural Network for the Hand Written Digi… Read More

## Hand-Written Digit Recognition In R Using Multinomial Logistic Regression

2018-06-12 19:17
Multinomial Logistic Regression is a classification method that generalizes Logistic Regression to multiclass problems i.e. with more than two possible discrete outcomes. So, can we use… Read More

## Hand-Written Digit Recognition In R Using RandomForest

2018-06-11 17:10
As the story goes, I was going through the Neural Network Exercise from the Andrew Ng Course of Machine Learning. I converted the .mat file to a .csv file long back. The steps… Read More

## Hand-Written Digit Recognition In R Using Rpart

2018-06-08 20:39
I converted the .mat file from the Andrew Ng Course to a .csv file long back. The steps are mentioned in another post here. But then, it took me some time and lots of effort to finally pract… Read More

## Cheatsheet For Mathematical Representation Of Machine Learning Algorithms

2018-05-25 19:11
Now, as I am trying to understand the mathematical side of the different Algorithms, it is getting messy, blur and cloudy in my head. That's why I decided to write all the formulae at one pl… Read More

## Convert .mat File To .csv File

2018-05-17 19:26
I thought of practicing the Neural Network exercise from Andrew Ng course in R and got stuck at the first step. The data file is in .mat format and I wanted to convert it in a .csv file. Aft… Read More

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