R语言新手求助：如何让函数输出结果逐行打印？

你的time_conv函数返回的是字符向量，R默认的print函数会对向量做紧凑排版，导致多个结果挤在同一行或按列分组显示。以下是几种简单的解决办法：

方法1：用cat函数结合换行符输出 #

修改函数，让每个结果末尾添加换行符\n，再用cat直接输出：

x <- "This is another way to figures out the decimal value in minutes"
print(x)

time_conv <- function(mins){
  paste((mins / 60),"is",mins,"seconds", sep = " ", collapse = "\n") 
}
cat(time_conv(mins = 1:10))

也可以不修改函数，在调用时拼接换行符：

result <- time_conv(1:10)
cat(paste(result, collapse = "\n"), "\n")

方法2：逐个打印每个元素 #

通过循环或sapply遍历向量，单独打印每个结果：

x <- "This is another way to figures out the decimal value in minutes"
print(x)

time_conv <- function(mins){
  paste((mins / 60),"is",mins,"seconds") 
}

# 使用sapply逐个打印
sapply(time_conv(1:10), print)

# 或者用for循环
for (line in time_conv(1:10)) {
  print(line)
}

方法3：调整print函数的排版参数 #

给print添加width = 1参数，强制每行只显示一个向量元素：

x <- "This is another way to figures out the decimal value in minutes"
print(x)

time_conv <- function(mins){
  paste((mins / 60),"is",mins,"seconds") 
}

print(time_conv(1:10), width = 1)

内容的提问来源于stack exchange，提问作者Steven Herren