WebMay 26, 2024 · You can use the following basic syntax to add a line that represents the average value in a plot in ggplot2: ggplot (df, aes (x=x, y=y)) + geom_point () + geom_hline (yintercept = mean (df$y, … WebA geom that draws a horizontal line defined by an y-axis intercept. Default statistic: stat_hline Default position adjustment: position_identity. Parameters. For geom_hline, … ggplot2 Quick Reference: geom Geometric objects (geoms) are the visual … Note. The size does not relate to the coordinate system or the position scales …
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WebJul 23, 2024 · Replace your geom_hline() with geom_hline(yintercept = 40, linetype = 2, colour = "red") and it should be dashed and red. – … Webgeom_hline: yintercept geom_abline: slope and intercept See also See geom_segment () for a more general approach to adding straight line segments to a plot. Examples p <- ggplot ( mtcars, aes ( wt, mpg )) + … WebAccording to the Susan G. Komen website, mammograms are not super- accurate sensitivity = 0.87 specificity = 0.88 Draw a plot similar to the Ora-Quick graph for mammograms. Set the yintercept value in geom_hline … a夢新番 2014