打破到最外层光栅的多重嵌套for循环

我有一个多重嵌套的for循环，我需要在最后一个嵌套（这里是clip.groups）完成后重新启动整个循环。我试过几种选择。每一层都涉及光栅，我无法通过“应用”等将其矢量化。因为有太多的输入文件，所以它是不可复制的

但其基本结构是：

clip.groups <- c('Bay area','Alameda County','Oakland','West and Downtown Oakland')
rate.groups <- c('co.25','cbg.25')
conc.groups <- c('ppb', 'ug')
pop.groups <- c('pop.ls.night.25')
beta.groups <- c(0.001105454,0.000318195,0.001881231)

for (j in 1:length(conc.groups)){
  for (i in 1:length(beta.groups)){
    for (k in 1:length(rate.groups)){
      for (h in 1:length(pop.groups)){
        for (m in 1:length(clip.groups)){
              break #==== THIS IS WHERE I NEED IT TO GO BACK TO THE OUTER MOST LOOP - (conc.groups j)  
            }
          }
        }
      }
    }
  }
}

---

clip.groups我不明白你在找什么。如果返回到最外层的循环，则中间的循环没有意义。那就是你明白了吗

clip.groups <- c('Bay area','Alameda County','Oakland','West and Downtown Oakland')
rate.groups <- c('co.25','cbg.25')
conc.groups <- c('ppb', 'ug')
pop.groups <- c('pop.ls.night.25')
beta.groups <- c(0.001105454,0.000318195,0.001881231)

for (j in 1:length(conc.groups)){
    beta.groups[1]
    rate.groups[1]
    pop.groups[1]
    for (m in 1:length(clip.groups)){
        cat(j, "-", m, "\n")
    }
}

clip.groups您可以使用标志有条件地中断循环吗？请给我们一个例子，说明你们在循环中做了什么，以及你们需要如何突破到外部。实际代码有助于说明您的需求。否则，这将被理解为在y解决方案（非常嵌套的
for
循环）上寻求帮助，但不描述x问题。