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

Given a vector of numbers, how would you turn the values into scientific notation?

How would you facet the data using ggplot2 package?

How would you find out the mean of one column with respect to another?

159

Tell me something about shinyr.

How can you simulate random walk model using r?

121

How would you join multiple strings together?

What is a random walk model and how can you simulate it using r?

101

How can you load a .csv file in r?

What is a factor?

What is a white noise model?

130

What is a white noise model and how can you simulate it using r?

Explain the different data structures in r?

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

Give examples of “rbind()” and “cbind()” functions in r

158

What is the use of stringr package.

Un-Answered Questions { Programming Languages }

What is strlen function in php?

1038

What is a random walk model and how can you simulate it using r?

101

What is an ecommerce developer?

How can we pass the variable through the navigation between the pages?

1008

What is slicing in python?

939

If a base class is an adt, and it has three pure virtual functions, how many of these functions must be overridden in its derived classes?

1112

Explain user, permission, role in drupal?

172

Which method cannot be overridden?

1122

Calculate the weighted average of a list of n numbers using the formula xavg = f1x1+f2x2+ ….+ fnxn where the f’s are fractional weighting factors, i.e., 0<=fi<1, and f1+f2+….+fn = 1

4293

How to check a variable is an array or not in php?

1009

How to Change the root key ?

1885

What are loops c?

1071

How a request is process in Django ?

491

What is the special meaning of __sleep and __wakeup?

1020

What is the starting point of python code execution?

1026

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