Data Science

Shiny

Question 1
Marks : +2 | -2
Pass Ratio : 17%
Which of the following function can interrupt execution and can be called continuously?
browser()
browse()
search()
all of the mentioned
Explanation:
Debugging shiny apps can be difficult.
Question 2
Marks : +2 | -2
Pass Ratio : 17%
Point out the wrong statement.
Shiny is platform for creating interactive programs embedded in to web page
Shiny is invented by R folks
Time required to create data products using shiny is more
All of the mentioned
Explanation:
Time to create data products is less using shiny.
Question 3
Marks : +2 | -2
Pass Ratio : 17%
How many components are involved in shiny?
3
4
5
none of the mentioned
Explanation:
Shiny apps have two components:user-interface script and server script.
Question 4
Marks : +2 | -2
Pass Ratio : 17%
Which of the following project is used for calling R products from web?
OpenCPU
OpenDisk
OpenMem
All of the mentioned
Explanation:
OpenCPU is complementary to OpenCPU.
Question 5
Marks : +2 | -2
Pass Ratio : 17%
Which of the following function is for single checkbox widget?
checkboxInput
dateInput
singleboxInput
all of the mentioned
Explanation:
Shiny comes with a family of pre-built widgets, each created with a transparently named R function.
Question 6
Marks : +2 | -2
Pass Ratio : 33%
Point out the correct statement.
shiny project is a directory containing at least three parts
shiny project is a file containing at least three parts
shiny project consist is a directory containing only one part
none of the mentioned
Explanation:
shiny project consist is a directory containing at least two parts.
Question 7
Marks : +2 | -2
Pass Ratio : 17%
Which of the following statement will install shiny?
install.packages(“shiny”)
install.library(“shiny”)
install.lib(“shiny”)
all of the mentioned
Explanation:
Shiny applications are automatically “live” in the same way that spreadsheets are live.
Question 8
Marks : +2 | -2
Pass Ratio : 17%
runApp() will run the shiny and open the browser window.
True
False
Explanation:
The chart is rendered within the browser using Flash.
Question 9
Marks : +2 | -2
Pass Ratio : 17%
All of the styled elements are handled through server.R.
True
False
Explanation:
All of the styled elements are handled through ui.R.
Question 10
Marks : +2 | -2
Pass Ratio : 67%
Which of the following can be done by shiny?
Tabbed main panels
Editable data tables
Dynamic UI
All of the mentioned
Explanation:
shiny allows users to upload files.