scale_colour_gradient2_tableau(palette = "Red-Blue", ...,
space = "rgb", na.value = "grey50",
guide = "colourbar") scale_fill_gradient2_tableau(palette = "Red-Blue", ...,
space = "rgb", na.value = "grey50",
guide = "colourbar")
scale_color_gradient2_tableau(palette = "Red-Blue", ...,
space = "rgb", na.value = "grey50",
guide = "colourbar")
"colourbar" for
continuous colour bar, or "legend" for discrete
colour legend.