Data Science

Graphics Devices

Question 1
Marks : +2 | -2
Pass Ratio : 100%
Which of the following function has parameters shown in the below figure?
par
bar
base
all of the mentioned
Explanation:
R makes it easy to combine multiple plots into one overall graph, using either the par( ) or layout( ) function.
Question 2
Marks : +2 | -2
Pass Ratio : 100%
There are mainly three types of file devices.
True
False
Explanation:
There are mainly basic types of file devices-vector and bitmap.
Question 3
Marks : +2 | -2
Pass Ratio : 100%
Point out the correct statement.
On Mac, the screen device is launched with quartz
On Windows, the screen device is launched with wind
On Unix, the screen device is launched with x12
All of the mentioned
Explanation:
On Windows, the screen device is launched with window function.
Question 4
Marks : +2 | -2
Pass Ratio : 100%
Which of the following function displays currently active graphics device?
dev.present
dev.cur
pre.cur
all of the mentioned
Explanation:
You can change the active graphics device with dev.set.
Question 5
Marks : +2 | -2
Pass Ratio : 100%
Which of the following is a vector file device?
png
svg
bmp
none of the mentioned
Explanation:
svg stands for scalable vector graphics.
Question 6
Marks : +2 | -2
Pass Ratio : 100%
Which of the following is a bitmap file type?
tiff
svg
pdf
none of the mentioned
Explanation:
TIFF is a computer file format for storing raster graphics images.
Question 7
Marks : +2 | -2
Pass Ratio : 100%
Point out the wrong statement.
File devices are useful for creating plots that can be included in other documents or sent to other people
Plots must be created on a graphics device
For file devices, there are vector and bitmap formats
None of the mentioned
Explanation:
For file devices, there are vector and bitmap formats.
Question 8
Marks : +2 | -2
Pass Ratio : 100%
Which of the following is alternative technique toprincipal component analysis?
Factor analysis
Independent components analysis
Latent semantic analysis
All of the mentioned
Explanation:
PC’s may mix real patterns.
Question 9
Marks : +2 | -2
Pass Ratio : 100%
Which of the the following graphic device information is odd man out in the below figure?
quartz
window
unix
x11
Explanation:
unix keyword does not exist with regards to graphics device.
Question 10
Marks : +2 | -2
Pass Ratio : 100%
Point out the correct statement.
Vector formats are good for line drawings and plots with solid colors using a modest number of points
Vector formats are good for plots with a large number of points, natural scenes or web based plots
The default graphics device is always the screen device
All of the mentioned
Explanation:
Bitmap formats are good for plots with a large number of points, natural scenes or web based plots.