我正在尝试创建一个看起来像这样的字符串
"c,1,2,3,4,5,6,7,8"
我能够通过执行以下操作来获取字符串的数字部分:
paste0(1:200, collapse = ",")
我如何在paste0
的结果开头添加“ c”?另外,我如何加入结果的“,c”结尾?
答案 0 :(得分:6)
我们可以用paste
paste0("c(", paste0(1:200, collapse = ","), ")")
或与sprintf
sprintf("c(%s)", paste0(1:200, collapse=","))
如果我们只需要'c',则使用
sprintf("c,%s", paste0(1:200, collapse = ","))
答案 1 :(得分:4)
您只想要字符串c,而不是函数吧?
def add_to_axes(ax, data, param, context_id = None):
data.plot(x = "Time_Elapsed", y = param, label = context_id, ax = ax)
outlier = data["iso_forest"] == -1
data[~outlier].plot("Time_Elapsed",param, style=".", color='green', ax=ax)
data[outlier].plot("Time_Elapsed",param, style=".", color='red', ax=ax)
答案 2 :(得分:2)
创建由c
和1:8
组成的向量,然后使用toString
:
toString(c("c", 1:8))
## [1] "c, 1, 2, 3, 4, 5, 6, 7, 8"