用來生成等差數(shù)列
seq(from=, by, length=)
from=: 起始數(shù)值
by=: 間隔數(shù)值
length=: 等差數(shù)列長(zhǎng)度
1. 示例一
> seq(from=1, by=3, length=5)
[1] 1 4 7 10 13
seq(from=, by, length=)
from=: 起始數(shù)值
by=: 間隔數(shù)值
length=: 等差數(shù)列長(zhǎng)度
> seq(from=1, by=3, length=5)
[1] 1 4 7 10 13