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 • 2,557 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 • 1,543 views
0 votes
1 answer

How can I find number of columns in a dataframe

Oct 12, 2018 in Data Analytics • 604 views
+3 votes
11 answers

What is Digital Marketing?

Sep 20, 2018 in Career Counselling • 2,866 views
0 votes
1 answer

How to know the type of an object?

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

How do I convert a dataframe to a list?

Sep 19, 2018 in Data Analytics • 4,377 views
0 votes
1 answer

How can I convert a list to a dataframe?

Sep 19, 2018 in Data Analytics • 585 views
+1 vote
3 answers

What is logistic regression?

Sep 7, 2018 in Data Analytics • 2,004 views
0 votes
3 answers

What is Linear Regression?

Sep 5, 2018 in Data Analytics • 1,562 views
0 votes
2 answers

What is nominal data and how to deal with it?

Aug 29, 2018 in Data Analytics • 1,716 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 • 2,997 views
+1 vote
3 answers

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

Aug 28, 2018 in Data Analytics • 1,329 views
0 votes
1 answer

Tokenizing text file generates error using word tokenize_words

Aug 28, 2018 in Data Analytics • 2,605 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 • 10,544 views
+1 vote
2 answers

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

Aug 24, 2018 in Data Analytics • 27,917 views
0 votes
2 answers

How do you build a custom function in Python?

Aug 24, 2018 in Data Analytics • 1,421 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 • 927 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 • 783 views
0 votes
1 answer

What is the importance of having a selection bias?

Aug 24, 2018 in Data Analytics • 870 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 • 833 views
0 votes
1 answer

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

Aug 21, 2018 in Data Analytics • 2,060 views
0 votes
1 answer

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

Aug 20, 2018 in Data Analytics • 4,579 views
0 votes
2 answers

What are the differences between overfitting and underfitting?

Aug 20, 2018 in Data Analytics • 34,619 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 • 1,134 views
0 votes
3 answers

What is the goal of A/B Testing?

Aug 20, 2018 in Data Analytics • 3,143 views
0 votes
1 answer

What is Selection Bias?

Aug 20, 2018 in Data Analytics • 4,022 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 • 4,558 views
0 votes
1 answer

How can I perform word stemming in R

Aug 10, 2018 in Data Analytics • 4,543 views
+1 vote
2 answers

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

Aug 9, 2018 in Data Analytics • 889 views
+1 vote
1 answer

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

Aug 9, 2018 in Data Analytics • 638 views
0 votes
1 answer

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

Aug 9, 2018 in Data Analytics • 637 views
+10 votes
3 answers

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

Aug 9, 2018 in Data Analytics • 1,638 views
0 votes
2 answers

What will be first step to be a data scientist?

Aug 7, 2018 in Data Analytics • 1,033 views
0 votes
1 answer

What is data science?

Aug 3, 2018 in Data Analytics • 884 views
+1 vote
2 answers

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

Aug 3, 2018 in Data Analytics • 14,716 views
+1 vote
1 answer

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

Jul 30, 2018 in Data Analytics • 846 views
0 votes
1 answer

What is the difference between random forest and decision trees?

Jul 30, 2018 in Data Analytics • 2,161 views
0 votes
1 answer

How do I become a data scientist step by step?

Jul 26, 2018 in Data Analytics • 773 views
0 votes
2 answers

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

Jul 26, 2018 in Data Analytics • 1,038 views
+1 vote
2 answers

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

Jul 25, 2018 in Python • 7,679 views
+1 vote
1 answer

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

Jul 25, 2018 in Python • 1,062 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 • 720 views
+1 vote
2 answers

What is the difference between correlation and covariance?

Jul 24, 2018 in Data Analytics • 4,082 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 • 1,290 views
+1 vote
1 answer

How to handle Nominal Data?

Jul 24, 2018 in Data Analytics • 649 views
+2 votes
2 answers

How to handle outliers

Jul 24, 2018 in Data Analytics • 952 views
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