R interview questions part 27
R interview questions part 27
Take as many assements as you can to improve your validate your skill rating
Total Questions: 20
1. Point out the correct statement :
Correct Answer is : None of the mentioned
2. ________ applies a function over the margins of an array.
Correct Answer is : apply()
3. _______ is used to apply a function over subsets of a vector.
Correct Answer is : tapply()
4. lappy functions takes _________ arguments in R language.
Correct Answer is : four
5. Point out the correct statement :
Correct Answer is : Sequence of operations is sometimes referred to as “map-reduce”
6. The _____ function takes a vector or other objects and splits it into groups determined by a factor or list of factors.
Correct Answer is : split()
7. Which of the following is valid body of split function ?
Correct Answer is : function (x, f, drop = FALSE, …)
8. _________ are mostly used for statistical analysis.
Correct Answer is : Neural Networks
9. In which year Haykin gave a comprehensive survey of neural network techniques from an engineering perspective?
Correct Answer is : 1994
10. Artificial neural networks may be thought of as simplified models of the networks of neurons that occur naturally in the ________
Correct Answer is : Animal brain
11. The simplest artificial neuron is the _______
Correct Answer is : TLU
12. Which of the following is the short form of Threshold logical unit?
Correct Answer is : TLU
13. The building blocks of artificial neural networks are artificial _______
Correct Answer is : Neurons
14. The membrane potential of the neuron has a negative resting or equilibrium value is called ____________
Correct Answer is : Hyperpolarization
15. _________ are commonly introduced as representations of quantities that have magnitude and direction.
Correct Answer is : Vectors
16. _______ is discovering unseen patterns from data.
Correct Answer is : Data Mining
17. The method that the optimized weight values are attained is called as ________
Correct Answer is : Leaning
18. They primary R system is available from the ______
Correct Answer is : CRAN
19. Point out the wrong statement :
Correct Answer is : R runs only on Windows computing platform and operating system
20. R functionality is divided into a number of ________
Correct Answer is : Packages
