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MSTIP - Data Mining - Quiz 1

Authored by ALVIN CERTEZA

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Professional Development

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MSTIP - Data Mining - Quiz 1
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29 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The following statement are true about R, except...

an integrated suite of software facilities for data manipulation, calculation and graphical display

a suite of operators for calculations on arrays, in particular matrices

graphical facilities for data analysis and display only directly at the computer but not on hardcopy

runs on all platforms

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The term “environment” is intended to characterize it as a fully planned and coherent system with an incremental accretion of very specific and inflexible tools, as is frequently the case with other data analysis software.

TRUE

FALSE

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

There is an important difference in philosophy between S (and hence R) and the other main statistical systems. In SAS and SPSS a statistical analysis is normally done as a series of steps, with intermediate results being stored in objects. Thus whereas S will give copious output from a regression or discriminant analysis, R will give minimal output and store the results in a fit object for subsequent interrogation by further R function

TRUE

FALSE

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

R the application is installed on your computer and uses your personal computer resources to process R programming language. RStudio integrates with R as an IDE (Integrated Developmet Environment) to provide further functionality. RStudio combines a source code editor, build automation tools and a debugger.

TRUE

FALSE

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

CRAN is abbreviations from...and what does CRAN mean?

Coherent R Active Network; the fundamental unit of shareable code

Cohorent R Archive Network; the public clearing house for R packages

Comprehensive R Archive Network; the public clearing house for R packages

Comprehensive R Active Network; the fundamental unit of shareable code

6.

MULTIPLE SELECT QUESTION

1 min • 1 pt

which one is true about R packages ? (the answer can be more than one)

the fundamental unit of shareable code

a collection of R functions, complied code and sample data

They are stored under a directory called "library" in the R environment.

By default, R installs a set of packages during installation. More packages are added later, when they are needed for some specific purpose.

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

which part that shows the list of R objects you created during your R session?

1

2

3

4

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