> a = read.csv(gzfile("cms_conf_ct_perweek.csv.gz"), as.is = TRUE)
> class(a)
[1] "data.frame"
> head(a)
week ct
1 2006-1 0
2 2006-2 5
3 2006-3 0
4 2006-4 0
5 2006-5 0
6 2006-6 0
> tail(a)
week ct
500 2015-32 0
501 2015-33 0
502 2015-34 2
503 2015-35 0
504 2015-36 0
505 2015-37 1
如何绘制这个时间序列(列#34;周"代表年份和星期,列#34; ct"是每个"周&#34的值;)?
没有工作plot(a)
感谢。