How to make a histogram in r with two variables

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  • How to create a histogram in r
  • Histogram in r example!

    ggplot2 histogram plot : Quick start guide - R software and data visualization

    This R tutorial describes how to create a histogram plot using R software and ggplot2 package.

    The function geom_histogram() is used.

    You can also add a line for the mean using the function geom_vline.


    The data below will be used :

    • The histogram is plotted with density instead of count on y-axis
    • Overlay with transparent density plot.

      Geom_histogram r

    • Geom_histogram r
    • How to make a histogram in r ggplot2
    • Histogram in r example
    • R histogram bin width
    • R histogram by group
    • The value of alpha controls the level of transparency

    Read more on ggplot2 line types : ggplot2 line types

    Calculate the mean of each group :

    The package plyr is used to calculate the average weight of each group :

    Change line colors

    Histogram plot line colors can be automatically controlled by the levels of the variable sex.

    Note that, you can change the position adjustment to use for overlapping points on the layer.

    Possible values for the argument position are “identity”, “stack”, “dodge”. Default value is “stack”.

    It is also possible to change manually histogram plot line colors using the functions :

    • sc

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        how to make a histogram in r with two variables

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