Questions by Anmol

0 votes
2 answers

How can you find total number of null values in a dataset column wise?

Oct 13, 2018 in Data Analytics • 2,307 views
+1 vote
2 answers

How can I find number of rows in a dataframe, and how to find the number of rows that dont have null values

Oct 12, 2018 in Data Analytics • 1,257 views
0 votes
1 answer

How can I find number of columns in a dataframe

Oct 12, 2018 in Data Analytics • 437 views
+3 votes
11 answers

What is Digital Marketing?

Sep 20, 2018 in Career Counselling • 2,242 views
0 votes
1 answer

How to know the type of an object?

Sep 20, 2018 in Data Analytics • 484 views
0 votes
1 answer

How do I convert a dataframe to a list?

Sep 19, 2018 in Data Analytics • 4,140 views
0 votes
1 answer

How can I convert a list to a dataframe?

Sep 19, 2018 in Data Analytics • 341 views
+1 vote
3 answers

What is logistic regression?

Sep 7, 2018 in Data Analytics • 1,528 views
0 votes
3 answers

What is Linear Regression?

Sep 5, 2018 in Data Analytics • 1,204 views
0 votes
2 answers

What is nominal data and how to deal with it?

Aug 29, 2018 in Data Analytics • 1,375 views
0 votes
1 answer

How can I import a file in R without giving the destination/file path to the specified file?

Aug 28, 2018 in Data Analytics • 2,489 views
+1 vote
3 answers

%>% What are these symbols/characters used for in R?

Aug 28, 2018 in Data Analytics • 845 views
0 votes
1 answer

Tokenizing text file generates error using word tokenize_words

Aug 28, 2018 in Data Analytics • 2,338 views
0 votes
2 answers

Define a SQL query? What is the difference between SELECT and UPDATE Query? How do you use SQL in SAS?

Aug 24, 2018 in PHP • 9,745 views
+1 vote
2 answers

What is an RDBMS? Name some examples for RDBMS? What is CRUD?

Aug 24, 2018 in Data Analytics • 27,564 views
0 votes
2 answers

How do you build a custom function in Python?

Aug 24, 2018 in Data Analytics • 1,102 views
0 votes
1 answer

Which package is used to do data import in R and Python and How do you import SAS data?

Aug 24, 2018 in Data Analytics • 695 views
0 votes
1 answer

What is data science? How would you say it is similar or different to business analytics and business intelligence?

Aug 24, 2018 in Data Analytics • 554 views
0 votes
1 answer

What is the importance of having a selection bias?

Aug 24, 2018 in Data Analytics • 669 views
0 votes
1 answer

How do you know which whether to apply supervised learning or unsupervised learning on a dataset

Aug 21, 2018 in Data Analytics • 628 views
0 votes
1 answer

How will you define the number of clusters in a clustering algorithm?

Aug 21, 2018 in Data Analytics • 1,711 views
0 votes
1 answer

Python or R – Which one would you prefer for text analytics?

Aug 20, 2018 in Data Analytics • 4,256 views
0 votes
2 answers

What are the differences between overfitting and underfitting?

Aug 20, 2018 in Data Analytics • 34,208 views
0 votes
1 answer

What do you understand by statistical power of sensitivity and how do you calculate it?

Aug 20, 2018 in Data Analytics • 844 views
0 votes
3 answers

What is the goal of A/B Testing?

Aug 20, 2018 in Data Analytics • 2,809 views
0 votes
1 answer

What is Selection Bias?

Aug 20, 2018 in Data Analytics • 3,714 views
0 votes
1 answer

What are the important skills to have in Python with regard to data analysis?

Aug 20, 2018 in Data Analytics • 4,310 views
0 votes
1 answer

How can I perform word stemming in R

Aug 10, 2018 in Data Analytics • 4,010 views
+1 vote
2 answers

How can I get experience in Data Science as a fresher?

Aug 9, 2018 in Data Analytics • 612 views
+1 vote
1 answer

How good at SQL does a data scientist really need to be?

Aug 9, 2018 in Data Analytics • 442 views
0 votes
1 answer

Can a data scientist do everything a data analyst can do?

Aug 9, 2018 in Data Analytics • 381 views
+10 votes
3 answers

Which is a better initiative to learn data science: Python or R?

Aug 9, 2018 in Data Analytics • 1,205 views
0 votes
2 answers

What will be first step to be a data scientist?

Aug 7, 2018 in Data Analytics • 677 views
0 votes
1 answer

What is data science?

Aug 3, 2018 in Data Analytics • 673 views
+1 vote
2 answers

What is the difference between LDA and PCA for dimensionality reduction?

Aug 3, 2018 in Data Analytics • 14,351 views
+1 vote
1 answer

How do I perform feature selection in a disease prediction data set?

Jul 30, 2018 in Data Analytics • 660 views
0 votes
1 answer

What is the difference between random forest and decision trees?

Jul 30, 2018 in Data Analytics • 1,904 views
0 votes
1 answer

How do I become a data scientist step by step?

Jul 26, 2018 in Data Analytics • 569 views
0 votes
2 answers

Why should anyone learn Python instead of R for machine learning?

Jul 26, 2018 in Data Analytics • 745 views
+1 vote
2 answers

What is the difference between classes and labels in machine learning?

Jul 25, 2018 in Python • 7,078 views
+1 vote
1 answer

What is the correct order to learn concepts in Python for machine learning?

Jul 25, 2018 in Python • 805 views
0 votes
1 answer

Would time taken to train n-random forest be equal to n x (decision trees)

Jul 24, 2018 in Data Analytics • 377 views
+1 vote
2 answers

What is the difference between correlation and covariance?

Jul 24, 2018 in Data Analytics • 3,770 views
0 votes
1 answer

On a given dataset would time taken to train n - random forest be equal to time taken to train n X (Decision tree)

Jul 24, 2018 in Data Analytics • 1,066 views
+1 vote
1 answer

How to handle Nominal Data?

Jul 24, 2018 in Data Analytics • 491 views
+2 votes
2 answers

How to handle outliers

Jul 24, 2018 in Data Analytics • 733 views
"PMP®","PMI®", "PMI-ACP®" and "PMBOK®" are registered marks of the Project Management Institute, Inc. MongoDB®, Mongo and the leaf logo are the registered trademarks of MongoDB, Inc.