Programming Languages Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

C (4721)
C++ (3583)
VC++ (653)
Delphi (566)

Python Related (3312)
PHP Related (7341)
Scala (340)
R Programming (396)

Objective-C (429)
Programming Languages AllOther (746)

Programming Languages Interview Questions

Questions Answers Views Company eMail

What is principal component analysis?

How would you find the number of missing values in a dataset and remove all of them?

Give examples of “select” and “filter” functions from “dplyr” package.

How would you create a box-plot using “plotly”?

How would you rename the columns of a dataframe?

How would you create a factor in r?

What is a random walk model?

Give some examples of the functions in stringr.

How would you write a custom function in r? Give an example.

How do you build and evaluate a random forest in r?

How would you do a cross-product of two tables in r?

What are the steps to build and evaluate a linear regression model in r?

What is the difference between a bar-chart and a histogram?

104

What do you know about the rattle package in r?

What is the difference between a bar-chart and a histogram? Where would you use a bar-chart and where would you use a histogram?

Un-Answered Questions { Programming Languages }

How to avoid expanding a tree node when double-clicking on it?

1727

How to set csrf token in codeigniter?

677

What are system requirement for laravel 5.0?

729

Is empty stack c++?

1012

What license is joomla! Released under?

103

Write the latest version of cakephp?

Does python have a string ‘contains’ substring method?

1070

How can I add a new block in drupal?

201

Is objective c the same as c sharp?

Explain me active record implementation. How to use it laravel?

698

Explain what are multibyte characters?

1215

Which is not a valid keyword a) public b) protected c) guarded

1278

Write a program to print "hello world" without using a semicolon?

1075

What is GDI object?

1165

Can you add pointers together? Why would you?

1145

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