ggplot ( df, aes ( trt, outcome ) ) + geom_point ( ) # You can also use geom_bar() with continuous data, in which case # it will show counts at unique locations df <- ame (x = rep ( c ( 2.9, 3.1, 4.5 ), c ( 5, 10, 4 ) ) ) ggplot ( df, aes ( x ) ) + geom_bar ( ) # cf. The order of the fill is designed to match # the legend g + geom_bar ( aes (fill = drv ) ) # If you need to flip the order (because you've flipped the orientation) # call position_stack() explicitly: ggplot ( mpg, aes (y = class ) ) + geom_bar ( aes (fill = drv ), position = position_stack (reverse = TRUE ) ) + theme (legend.position = "top" ) # To show (e.g.) means, you need geom_col() df <- ame (trt = c ( "a", "b", "c" ), outcome = c ( 2.3, 1.9, 3.2 ) ) ggplot ( df, aes ( trt, outcome ) ) + geom_col ( ) # But geom_point() displays exactly the same information and doesn't # require the y-axis to touch zero. # geom_bar is designed to make it easy to create bar charts that show # counts (or sums of weights) g <- ggplot ( mpg, aes ( class ) ) # Number of cars in each class: g + geom_bar ( ) # Total engine displacement of each class g + geom_bar ( aes (weight = displ ) ) # Map class to y instead to flip the orientation ggplot ( mpg ) + geom_bar ( aes (y = class ) ) # Bar charts are automatically stacked when multiple bars are placed # at the same location. Override the default connection between geom_bar() and That define both data and aesthetics and shouldn't inherit behaviour from If FALSE, overrides the default aesthetics, It can also be a named logical vector to finely select the aesthetics to NA, the default, includes if any aesthetics are mapped.įALSE never includes, and TRUE always includes. Should this layer be included in the legends? See the Orientation section for more detail. Rare event that this fails it can be given explicitly by setting orientation The default ( NA)Īutomatically determines the orientation from the aesthetic mapping. If TRUE, missing values are silently removed. If FALSE, the default, missing values are removed withĪ warning. By default, set to 90% of the resolution() of the Unintended behaviour when used with alternative positions, e.g.īar width. Set to 0 or 1 to placeĬolumns to the left/right of axis breaks. That columns will be centered about axis breaks. They may also be parametersĪdjustment for column placement. Often aesthetics, used to set an aesthetic to a fixed value, likeĬolour = "red" or size = 3. "jitter" to use position_jitter), or the result of a call to a Position adjustment, either as a string naming the adjustment A function can be createdįrom a formula (e.g. Seeįortify() for which variables will be created.Ī function will be called with a single argument, All objects will be fortified to produce a data frame. If NULL, the default, the data is inherited from the plotĭata as specified in the call to ggplot().Ī ame, or other object, will override the plotĭata. You must supply mapping if there is no plot Inherit.aes = TRUE (the default), it is combined with the default mappingĪt the top level of the plot. Set of aesthetic mappings created by aes().
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