Error in *** : replacement has length zero

Error in *** : replacement has length zero

Error in *** : replacement has length zero

目录

Error in *** : replacement has length zero

问题：

解决：

完整问题：

问题：

会出现：data[1] * data[0]

但是R的索引是从1开始的，你说data[0]是什么意思？

data = c(1, 4, 5, 5, 7, 9, 12, 14, 15, 17)for (i in 1:length(data)) {data[i] = data[i] * data[i-1]
}

解决：

#解决出现索引0 的问题

for (i in 2:length(data)) {data[i] = data[i] * data[i-1]
}#view updated vector
data

完整问题：

> data = c(1, 4, 5, 5, 7, 9, 12, 14, 15, 17)
> 
> 
> for (i in 1:length(data)) {
+     data[i] = data[i] * data[i-1]
+ }
Error in data[i] <- data[i] * data[i - 1] : replacement has length zero
>