Data Visualization with ggplot2 MCQ question and answer with solution

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Each section contains 100 MCQs on Data Visualization with ggplot2 .

What does the theme_minimal() function do in ggplot2?

A) Sets the plot theme with minimal elements B) Adds a minimalistic title to the plot C) Removes all elements from the plot D) Modifies the axis labels and titles

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

In ggplot2, how do you customize the appearance of the legend title?

A) labs(legend.title = "New Title") B) legend_title("New Title") C) theme(legend.title = element_text("New Title")) D) scale_fill_discrete(name = "New Title")

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

How do you customize the transparency of points in a ggplot2 scatter plot?

A) geom_point(alpha = 0.5) B) point_transparency(0.5) C) aes(alpha = 0.5) D) transparency(0.5)

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

In ggplot2, what does the geom_text() function do?

A) Adds text labels to the plot B) Creates a text-based geometric shape C) Modifies the text properties of the plot D) Embeds a text file into the plot

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

How do you create a faceted scatter plot in ggplot2 for two categorical variables facet1 and facet2?

A) facet_grid(facet1 ~ facet2) B) geom_facet_scatter(facet1, facet2) C) facet_wrap(~facet1 + facet2) D) scatter_facet(facet1, facet2)

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

In ggplot2, how do you create a bar plot with horizontal bars?

A) geom_bar(position = "horizontal") B) bar_plot_horizontal() C) geom_barh() D) bar_horizontal()

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What is the purpose of the scale_y_log10() function in ggplot2?

A) Applies a log base 10 transformation to the y-axis B) Sets the y-axis to a logarithmic scale C) Adds a log scale to the y-axis D) Transforms the y-axis to a logarithmic scale

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

How do you create a theme with a dark background in ggplot2?

A) theme_dark() B) theme_bg_color("dark") C) dark_theme() D) background_dark()

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

In ggplot2, how do you customize the appearance of axis ticks?

A) theme(axis.ticks = element_line(color = "red")) B) customize_ticks(color = "red") C) axis_ticks(color = "red") D) scale_x_continuous(ticks = "red")

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

How do you create a density plot in ggplot2 for a numeric variable named values?

A) geom_density(mapping = aes(x = values)) B) density_plot(values) C) geom_density(x = values) D) density(values)

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

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Data Visualization with ggplot2 MCQ question and answer with solution | R Programming MCQs