. . . . . . . . generate aesthetic mappings from a string.
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R Programming · all questionsData Manipulation with dplyr
Data Manipulation with dplyr
practice.
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148
Questions
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. . . . . . . . produces one-dimensional scatterplots.
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. . . . . . . . create a complete ggplot appropriate to a particular data type.
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. . . . . . . . grammar makes a clear distinction between your data and what gets displayed on the screen or page.
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Annotation of plots in any plotting system involves adding points, lines, or text to the plot, in addition to customizing axis labels or adding titles. Different plotting systems have different sets of functions for annotating plots in this way. Which of the following functions can be used to annotate the panels in a multi-panel lattice plot?
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Point out the wrong statement?
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What will be the output of the following R code?
> set.seed(10)
> x <- rbinom(100, 1, 0.5)
> str(x)Select an option to see the answer and solution.
Which of the following is true about the base plotting system?
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Which function opens the screen graphics device for the Mac?
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system.time function returns an object of class . . . . . . . . which contains two useful bits of information.
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. . . . . . . . is used when you have variables that form rows instead of columns.
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What is ggplot2 an implementation of?
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Point out the correct statement?
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. . . . . . . . divides the time spend in each function by the total run time
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R comes with a . . . . . . . . to help you optimize your code and improve its performance.
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. . . . . . . . generate random Normal variates with a given mean and standard deviation.
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Which of the following draws nothing?
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Which of the following cuts numeric vector into intervals of equal length?
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For barchart and . . . . . . . . non-trivial methods exist for tables and arrays, documented at barchart.table.
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Q100
Open questionWhich of the following functions is typically used to add elements to a plot in the base graphics system?
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