Interview Questions
📄 410 ArticlesSQL Interview Questions – Data Science Quiz – Day 2
SQL interview questions – Day 2 of the quiz will have most of the questions from SQL SQL is one […]
Data Science Interview Questions
We will be doing Data Science interview questions on a daily basis. So you will be receiving 10 Data Science […]
Statistics Interview Questions for Data Science
Here we have a set of 17 statistics interview questions that you should understand before your data science interviews. These […]
How to make a career in Data Science? Data Science Preparation
People have always been curious about how to make a career in data science or how to enter this domain […]
What is Stationarity in Time Series?
Stationarity in Time SeriesThe first step for any time series analysis is to make the data set stationary. Everyone knows […]
Label Encoder and One Hot Encoding
In our datasets we can have any sort of data, we can have numbers, categories, texts, or literally anything. If […]
300+ Data Science Interview Questions
Probably you have a lot of information about what to study and not to study for a Data Science job. […]
Janta Hack – Analytics Vidhya R code
install.packages(“stringr”)library(stringr) data = read.csv(“C:/Users/User/Desktop/Hackathon/JantaHack/train.csv”)head(data)str(data) data$product <- str_count(data$ProductList,”;”)+1head(data)data$hours <- with(data, difftime(endTime,startTime,units=”hours”) )data$min <- with(data, difftime(endTime,startTime,units=”mins”) )data$x <- as.double(data$endTime – data$startTime, units […]
Missing Value Treatment – Mean, Median, Mode, KNN Imputation, and Prediction
Missing Value treatment is no doubt one of the most important parts of the whole process of building a model. […]
Story of Bias, Variance, Bias-Variance Trade-Off
Why do we predict?We predict in order to identify the trend of the future by using our sample data set. […]