COP 2073 -- MIDTERM STUDY GUIDE BASED OFF ALL
QUESTIONS IN IN-CLASS QUIZZES ANSWERED
PERFECTLY!!
__________________ is a special kind of markup language that lets you format
text with simple syntax.
Markdown
For justification, how do you use colons?
Right: : on right
Left: : on left
Default
Center: : on left and right
R functionality is divided into a number of ___________
Packages
What is the output of typing 3>4 in R?
False
What is the output of
class("Hello")
"character"
,What command can you use to install a package named "packageName"in R?
install.packages("packageName")
In R, the assignment operator is denoted by the symbol:
<-
Data scientists use data to: (SELECT ALL THAT APPLY)
- test hypotheses
- predict outcomes
- detect anomalies
- extract info (and eventually knowledge)
The terms ________________ ,________________ , and ________________ are
often used interchangeably to denote an individual abstraction.
Variable, feature, attribute
________________ is a version control system that provides a set of commands
that you can use to manage changes to written code.
git
An easy way to install R is to download it from the CRAN, which stands for:
Comprehensive R Archive Network
, To print the working directory (which folder the shell is currently inside), you can
use the command:
pwd
git provides the following important capabilities: (select all that apply)
- reversibility
- concurrency
- annotation
A _________________, is a snapshot or checkpoint of your work at a given time
that has been added to the repository (saved in the database).
commit
What does the command below do?
mkdir learning_git
Creates a new folder in your current location called `learning_git`
What kind of programming language is R?
open source
Is R an interpreted or compiled language?
Interpreted. This provides a programming environment that allows the ability to
separately executive each individual line of code int he script.
Variable names must begin with a
letter
QUESTIONS IN IN-CLASS QUIZZES ANSWERED
PERFECTLY!!
__________________ is a special kind of markup language that lets you format
text with simple syntax.
Markdown
For justification, how do you use colons?
Right: : on right
Left: : on left
Default
Center: : on left and right
R functionality is divided into a number of ___________
Packages
What is the output of typing 3>4 in R?
False
What is the output of
class("Hello")
"character"
,What command can you use to install a package named "packageName"in R?
install.packages("packageName")
In R, the assignment operator is denoted by the symbol:
<-
Data scientists use data to: (SELECT ALL THAT APPLY)
- test hypotheses
- predict outcomes
- detect anomalies
- extract info (and eventually knowledge)
The terms ________________ ,________________ , and ________________ are
often used interchangeably to denote an individual abstraction.
Variable, feature, attribute
________________ is a version control system that provides a set of commands
that you can use to manage changes to written code.
git
An easy way to install R is to download it from the CRAN, which stands for:
Comprehensive R Archive Network
, To print the working directory (which folder the shell is currently inside), you can
use the command:
pwd
git provides the following important capabilities: (select all that apply)
- reversibility
- concurrency
- annotation
A _________________, is a snapshot or checkpoint of your work at a given time
that has been added to the repository (saved in the database).
commit
What does the command below do?
mkdir learning_git
Creates a new folder in your current location called `learning_git`
What kind of programming language is R?
open source
Is R an interpreted or compiled language?
Interpreted. This provides a programming environment that allows the ability to
separately executive each individual line of code int he script.
Variable names must begin with a
letter
