在原来两个变量的图里面再加一个变量 试图增加颜色,以此来表现
eg1:color=gender用包裹器放在geom_line里面
ggplot(aes(x=age,y=friend_count),data = subset(pf,is.na(gender)))+
geom_line(aes(color = gender),stat = 'summary',fun.y = median)
eg2:color=creditlevel置于ggplot的包裹器里
ggplot(aes(x=BankcardUtilization,y=StatedMonthlyIncome,color=creditlevel),data = subset(data,!(is.na(data$creditlevel))))+
geom_jitter(alpha=0.5)+scale_y_continuous(limits =c(0,50000))+
scale_x_continuous(limits = c(0,2))+
facet_wrap(~IsBorrowerHomeowner)+scale_color_brewer(type = "seq")+
theme(panel.background = element_rect(fill="#DCDCDC"),
panel.grid = element_blank())+
ggtitle("信用等级影响因素分析")
scale_colour_brewer:调整色标颜色
调整绘图色标:
- scale_colour_brewer:https://ggplot2.tidyverse.org/reference/scale_brewer.html
- ColorBrewer 调色板和安全色:http://www.cookbook-r.com/Graphs/Colors_(ggplot2)/#palettes-color-brewer
- Legends:http://www.cookbook-r.com/Graphs/Legends_(ggplot2)/