Data Visualization Using R MCQs Solution | TCS Fresco Play | Fresco Play | TCS
Make an effort to understand these solutions and apply them to your Hands-On difficulties. (It is not advisable that copy and paste these solutions).
All Question of the MCQs Present Below for Ease Use Ctrl + F with the question name to find the Question. All the Best!
1. graphics,ggplot2 packages qualify for ___
Visualization Packages
2. Scatterplot Matrix is an example of __ type of visualization.
Multivariate
3. Which command in R, lists the available Datasets in R
data()
4. Title of the plot is provided by the variable
main
5. In the plot, to add label to the horizontal axis the variable to be configured is
xlab()
6. Histograms , Density Plots are examples of which type of visualization?
Univariate
7. How can we find the different parameters available ?
par()
8. Histogram is mainly used as visual representation of _
distribution
9. Which parameter in R helps to decide the number of bins which we want to manually override?
breaks
10. Which parameter decides the line type & plot symbol respectively?
Ich & pty
12. In case of the plot, which parameter decides whether the plot should be line or points or both?
13. The vertical axis label is provided by the parameter
ylab
14. To reset the grid to normal layout, after displaying multiple charts in single view could be obtained by
par(mfcol(1,1))
15. Which parameter could be used to convert stacked barplot into grouped bar plot?
beside=TRUE
16. If one would like to visualize 6 graphs in single view with graphs scaling in row wise fashion (2 rows)
par(mfrow=c(2,3))
17. Which parameter is helpful to swap the chart from x-axis to y-axis?
horiz=true
18. Barchart represents visual display of of category of categorical variable
frequency
19. Customizing the way your graphs could be arranged can be configured using _
layout()
20. Which argument helps in changing the size of plotting characters?
SIZE
21. Stratified boxplots are useful for examining the relationship between a categorical variable and a numeric variable.
True
22. col.main=4, will change size of the font ?
False
23. Which plot would be applicable for summarizing the value of numeric variable
Boxplot
24. Changing the font size of the axis labels could be accomplished using the following font
25. Which parameter removed the X & Y axis
axes=F
26. If in the Notched boxplot does not overlap, it means___
Medians do not overlap
27. Which command allows to place the text within the graph?
text
28. Which text feature allows the text to written along the margin of the graph?
mtext
29. Which of this is limitation of lattice plots?
All options
30. Lattice package supports the generation of trellis graphs (graphs that display a variable or the relationship between variables, conditioned on one or more other variables)
True
31. In lattice, ~x|A refers to
display numeric variable x for each level of factor A
32. In lattice,y~x | A*B refers to
Display the relationship between numeric variables y and x separately for every combination of factor A and B levels
33. Using ggplot2 for multifaceted diagram, the deciding variable on the number of rows or columns is
.(decimal)
34. ggplot2 requires the data to be in
dateframe format
35. Aesthetics in ggplot2 refers to
size,shape,color
36. The grey zone around the geom("smooth") line refers to
95% confidence
37. In multifaceted plot, how many columns will be formed when facets is mentioned as facets=.~drv
depends on drv
38. Geometric (geom) in ggplot2 refers to
points,lines
39. In multifaceted plot, how many columns will be formed when facets is mentioned as facets=drv~.
always 1 column
40. Factors represent the subset of the data and they should be properly labelled
True
41. In multifaceted plot, how many rows will be formed when facets is mentioned as facets=.~drv
always 1 row
42. What does gg in ggplot2 refer to
Grammar of Graphics
43. In multifaceted plot, how many rows will be formed when facets is mentioned as facets=drv~.
depends on drv
44. ggplot2 allows to add features layer by layer
True
45. In ggplot2, which function decides the object printing ____
geom.point()
46. The functions which assist in labelling of the functions is _
all options
Post a Comment