R 如何去除输出中的列表位置/行号
我想显示一个函数的许多结果,但我已经读到,您只能返回一个对象,因此,如果您想显示更多,必须使用列表。这可以正常工作,但是有时候输出的可读性不是很好(在这个假例子中,它还不错,但在我的工作中是这样)。如何消除或抑制R自动添加到输出中的这些行/列表位置 电流输出:R 如何去除输出中的列表位置/行号,r,list,function,readability,R,List,Function,Readability,我想显示一个函数的许多结果,但我已经读到,您只能返回一个对象,因此,如果您想显示更多,必须使用列表。这可以正常工作,但是有时候输出的可读性不是很好(在这个假例子中,它还不错,但在我的工作中是这样)。如何消除或抑制R自动添加到输出中的这些行/列表位置 电流输出: [[1]] [1] "There are 5 total observations" [[2]] [1] "The mean of these observations is 0.564422113896047" [[3]] [1]
[[1]]
[1] "There are 5 total observations"
[[2]]
[1] "The mean of these observations is 0.564422113896047"
[[3]]
[1] "The observations are shown below:"
[[4]]
[1] 1.0496648 0.4807251 0.8536269 1.7946839 -1.3565901
期望输出:
"There are 5 total observations"
"The mean of these observations is 0.564422113896047"
"The observations are shown below:"
1.0496648 0.4807251 0.8536269 1.7946839 -1.3565901
我很高兴能够解决能够删除以上每行双括号输出,但保持行号输出。如果我也可以改变各个点的行距,那就更好了,但不是真的需要
用于创建此函数/输出的代码:
test <- function(n_observations) {
obs <- rnorm(n_observations)
return(list(
paste0("There are ",n_observations," total observations"),
paste0("The mean of these observations is ",mean(obs)),
paste0("The observations are shown below:"),
obs
))
}
test(n_observations = 5)
如果您想改进输出的打印方式,我们可以使用
cat
,包括在每行后面加“\n”以在不同的行中显示输出
test <- function(n_observations) {
obs <- rnorm(n_observations)
return(cat(
paste0("There are ",n_observations," total observations\n"),
paste0("The mean of these observations is ",mean(obs), "\n"),
paste0("The observations are shown below:\n"),
obs
))
}
test(n_observations = 5)
#There are 5 total observations
# The mean of these observations is -0.785794194405614
# The observations are shown below:
# -0.4806757 -0.6366636 0.3147989 -1.873661 -1.25277
最后一个
print(random\u table)
可以避免,我们只能使用random\u table
,但我假设OP还有很多类似的东西可以print
,所以在这种情况下它可能会很有用。感谢您提供了这两个示例,是的,我有许多不同的表要显示,但您的方法可以很好地使用它。
There are 5 total observations
The mean of these observations is 0.445438123798109
The observations are shown below:
1.677665 1.379066 0.3436419 0.4783038 -1.651487 Error in cat(paste0("There are ", n_observations, " total observations\n"), :
argument 6 (type 'list') cannot be handled by 'cat'
test <- function(n_observations) {
obs <- rnorm(n_observations)
return(cat(
paste0("There are ",n_observations," total observations\n"),
paste0("The mean of these observations is ",mean(obs), "\n"),
paste0("The observations are shown below:\n"),
obs
))
}
test(n_observations = 5)
#There are 5 total observations
# The mean of these observations is -0.785794194405614
# The observations are shown below:
# -0.4806757 -0.6366636 0.3147989 -1.873661 -1.25277
test <- function(n_observations) {
obs <- rnorm(n_observations)
random_table <- as.data.frame(cbind(c(1:n_observations), obs))
cat(paste0("There are ",n_observations," total observations\n"),
paste0("The mean of these observations is ",mean(obs), "\n"),
paste0("The observations are shown below:\n"),
obs, "\n\n The table is as below : \n\n")
print(random_table)
}
test(n_observations = 5)
#There are 5 total observations
# The mean of these observations is 0.540141211615552
# The observations are shown below:
# 1.922104 -0.5334201 -0.9881913 1.838563 0.4616504
# The table is as below :
# V1 obs
#1 1 1.9221042
#2 2 -0.5334201
#3 3 -0.9881913
#4 4 1.8385628
#5 5 0.4616504