PHP interview questions part 20
PHP interview questions part 20
Take as many assements as you can to improve your validate your skill rating
Total Questions: 20
1. __________ function is used for reading the .csv file in R language.
Correct Answer is : __call()
2. The line of code in R language should begin with a ________________
Correct Answer is : __destruct()
3. _______________ returns TRUE then X can be termed as a matrix data object.
Correct Answer is : In PHP 4: $second and $first are 2 distinct objects
4. If two vectors with different lengths perform some operation, the elements of the shorter vector will be used again to complete the operation. This is referred to as _________________
Correct Answer is : clone
5. If the function in a console is.matrix(X) returns true then X can be considered as a _______
Correct Answer is : Object id #1
6. ______________ measures the probability of the binary response variable in R language.
Correct Answer is : BOB (age 44)
7. ______________ function will measure the probability of the binary response variable in R language.
Correct Answer is : copied
8. ____________ function can be used to select the random sample of size ‘n’ from a huge dataset.
Correct Answer is : __get()
9. Which function is used to select variables and observations from a given dataset?
Correct Answer is : PHP Fatal error: Cannot override final method
10. ____________ package in R language provides various options for re-randomization and permutations based on statistical tests.
Correct Answer is : client code
11. A matrix of scatterplots can be produced using _________ function.
Correct Answer is : child parent
12. __________ function takes various parameters like formula, data, subset, labels, etc.
Correct Answer is : Cohesion
13. How will you check if an element is present in a vector?
Correct Answer is : Tight Coupling
14. ________ function is usually used inside another function and throws a warning whenever a particular package is not found.
Correct Answer is : Orthogonal
15. ___________ function gives an error message if the desired package cannot be loaded.
Correct Answer is : class switching
16. A ________________ in R programming language can also contain numeric and alphabets along with special characters like dot and underline.
Correct Answer is : Encapsulation
17. The current user defined objects like lists, vectors, etc. is referred to as __________ in the R language.
Correct Answer is : Code Duplication
18. Which function helps you perform sorting in R language?
Correct Answer is : unified modeling language
19. Which function is used to create a histogram for visualisation in R programming language?
Correct Answer is : Class Name
20. Write the syntax to set the path of the current working directory in R environment?
Correct Answer is : Constraints
