r - Linetypes missing for one group ggplot2 -


i have following data:

date, name, bin,group, value 2017-08-19,a1,0,1,302 2017-08-19,a3,0,1,35 2017-08-19,a4,0,1,33 2017-08-19,a6,0,1,43 2017-08-19,p1,0,0,76 2017-08-19,i3,0,0,23 2017-08-19,cl,1,1,73 2017-08-19,c,1,0,2 2017-09-19,a1,0,1,302 2017-09-19,a3,0,1,35 2017-09-19,a4,0,1,33 2017-09-19,a6,0,1,43 2017-09-19,p1,0,1,76 2017-09-19,i3,0,1,23 2017-09-19,cl,1,1,73 2017-09-19,c,1,1,2

for reason ending plot not show linetype 1 of groups.

here code:

p <- df %>%   ggplot(aes(y=value,x=date,color=name))+   geom_point(aes(shape=factor(bin)))+   geom_line(aes(linetype=factor(group)))+   geom_hline(aes(yintercept = 0))+   theme_minimal() p

you can see image below 1 of linetypes not showing.

enter image description here

how other linetype show?

the reason lines aren't showing name's there 2 group's. result, ggplot doesn't ones pick showing lines , apparently decides plot nothing @ all.

a possible solution change group-value first 1 of each name , plot:

df %>%    group_by(name) %>%    mutate(group = first(group)) %>%    ggplot(aes(x = date, y = value, color = name)) +   geom_point(aes(shape = factor(bin))) +   geom_line(aes(linetype = factor(group))) +   geom_hline(aes(yintercept = 0)) +   theme_minimal()

which gives following plot:

enter image description here


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