Even before the written script was invented, humans used to communicate through paintings. We understand better and absorb more when the information is presented in the form of visual elements. In simple terms, data visualization is representing the data in the form of various visual elements like charts, graphs, etc. …

The world is divided into many categories and so is the data. Thinking about categories is the first step a child takes to make sense of the world. We teach child about the categories in the world. Cat, dog, tiger, deer are animals. Then we teach that cat, dog, sheep…

k Nearest Neighbors (kNN) is one of the fundamental supervised machine learning algorithms. kNN works with the philosophy that usually neighbors are similar. It can be used for both classification and regression problems but is popularly used for classification problems and seldom for regression task. kNN is a very simple…

In real world many times we come across classification problem of the data that has imbalance. The data is skewed towards specific label or class only. What it means that one specific label is present in the data in much less quantity as compared to the other label(s). There are…

I had to write a python script to calling a series of APIs based on business logic. The issue was that these APIs needed an authentication token to execute. …

In today’s world we are getting data from variety of sources. The data is generated from internal sources like IoT devices fitted in an automobile, POS machines in a store, inventory data of a retail store and from external sources like https://data.gov.in/ for India, https://www.data.gov/ for US etc. (I am…

Most of the Data Scientist coding in Python are comfortable using Jupyter Notebook. One of the most basic skills that most of the Data Scientist lack is writing a production ready code. As Jupyter Notebook gives a seamless IDE for examining the variables and displaying the print statements right below…

I wanted to display statistics for a specific district on the map. The first step towards this was to find the latitude and longitude for the district so that pins can be displayed on map. Based on the pins, I wanted to display various data related to the district. In…

One of the first things done in EDA is to analyze missing values. Depending on the data, many types of values can be considered as missing values. Sometimes cells with spaces only are considered as missing values and other times empty cells are considered as missing values. …