Ggplot Line Graph Multiple Variables. The easy way is to use the multiplot function defined at the bottom of this page. Basic line graph ggplot data dat aes x time y total_bill group 1 geom_line This would have the same result as above ggplotdatadat aesxtime ytotal_bill geom_lineaesgroup1 Add points ggplot data dat aes x time y total_bill group 1 geom_line geom_point Change color of both line and points Change line type and point.
The generated plot can be kept as a variable and then printed at any time using the function print. In ggplot you use the symbol to add new layers to an existing graph. Plotting Two Lines in Same ggplot2 Graph Using geom_line Multiple Times.
An ordered numeric variable for the X axis Another numeric variable for the Y axis.
Ggplotdatadf2 aesxdose ylen groupsupp geom_line geom_point ggplotdatadf2 aesxdose ylen groupsupp geom_linelinetypedashed colorblue size12 geom_pointcolorred size3 Change line types by groups. In the graphs below line types colors and sizes are the same for the two groups. If youre not familiar with the geom_line function you should probably have a look to the most basic line chart first. After creating plots two other important functions are.
