In machine learning, the Logistic Regression algorithm is used for ... Continue reading
Statistics
ARIMA Modelling – Identify Model f …
The first step is to identify a possible model for a given time series. To ... Continue reading
ARIMA Modelling in R …
We now have a fair idea about how we can use ARIMA modelling in R to ... Continue reading
Forecasting with AutoRegressive (AR) Mod …
Now that we know how to estimate the AR model using ARIMA, we can create a ... Continue reading
Estimating AutoRegressive (AR) Model in …
We will now see how we can fit an AR model to a given time series using ... Continue reading
AutoRegressive (AR) Model in R …
AutoRegressive (AR) model is one of the most popular time series model. In ... Continue reading
Simulate Random Walk (RW) in R …
When a series follows a random walk model, it is said to be non-stationary. ... Continue reading
Autocorrelation in R …
Autocorrelation is an important part of time series analysis. It helps us ... Continue reading
Differencing and Log Transformation …
Removing Variability Using Logarithmic Transformation Since the data ... Continue reading
Transforming a Series to Stationary …
Most financial and economic times series are not stationary. Even when you ... Continue reading
Stationary Process in Time Series …
A common assumption made in time series analysis is that one of the ... Continue reading
Check If Data Is Normally Distributed Us …
The first step to check if your data is normally distributed is to plot a ... Continue reading
Big Data and the Role of the Data Scient …
The latest adventurers are into analysing Big Data to get invaluable nuggets ... Continue reading
Understanding Hypothesis Testing and p-v …
Behavioral scientists, market researchers, astrophysicists, drug testers all ... Continue reading
How to Read Student’s t Distributi …
Student’s t distribution table has the following structure: The row ... Continue reading
Why Lognormal Distribution is Used to De …
The concept of lognormal distribution is very closely related to the concept ... Continue reading
How to Construct a Frequency Distributio …
The statistical data that we collect can be presented in the form of a ... Continue reading
Best Linear Unbiased Estimator (B.L.U.E. …
The Need There are several issues when trying to find the Minimum ... Continue reading
Linear Combinations of Random Variables …
The joint distribution of a particular pair of linear combinations of random ... Continue reading
Independent and Identically Distributed …
Definition I.I.D’s or independent and identically distributed variables are ... Continue reading