我想设置我的传奇的线型.
我的数据如下:
VisitMonth VisitYear CaixaForum MNAC FirstDay
1: 01 2007 NA 7125 2007-01-01
2: 02 2007 NA 5345 2007-02-01
3: 03 2007 NA 4996 2007-03-01
4: 04 2007 NA 5476 2007-04-01
5: 05 2007 NA 6160 2007-05-01
---
98: 02 2015 17903 2360 2015-02-01
99: 03 2015 30400 2930 2015-03-01
100: 04 2015 25422 3088 2015-04-01
101: 05 2015 10787 2130 2015-05-01
102: 06 2015 3679 2047 2015-06-01
我想绘制CaixaForum和MNAC专栏的时间系列.我有以下代码:
ggplot(data = MUSEUMS, aes(x = FirstDay, y = MNAC)) +
geom_line(size=0.75, …