Ivy_Honeywell_Data Analytics_2.1

Which of the following is a principle of analytic graphics?

• Don’t plot more than two variables at a time

• Make judicious use of colour in your scatterplot

• Show box plots(univariate summaries)

• Show causality, mechanism, explanation

What is the role of exploratory graphs in data analysis?

• They are made for formal presentations

• They are typically made very quickly

• Axes, legends, and other details are clean and exactly detailed

• They are used in place of formal modelling

Which of the following is true about the base plotting system?

• Margins and spaces are adjusted automatically depending on the type of plot and the data

• Plots are typically created with a single function call

• Plots are created and annotated with separate functions.

• The system is most useful for conditioning plots

Bitmapped file formats can be most useful for:

• Plots that may need to be resized

• Plots that require animation or interactivity

• Plots that are not scaled to a specific resolution

• Scatterplots with many points

Which of the following functions is typically used to add elements to a plot in the base graphics system?

• lines()

• hist()

• plot()

• boxplot()

Which of the following method make vector of repeated values?

• rep()

• data()

• view()

• all of the above

Which of the following finds position of a quantile in a dataset?

• quantile()

• barplot()

• barchart()

• all of the above

Which of the following functions cross tabulate tables using formulas?

• table

• stem

• xtabs

• all of the above

Which of the following groups find the correlation matrix?

• factor.model

• col.max(x)

• stem()

• which.max()

Spinning plots can be used for two dimensional data.

• TRUE

• FALSE