How do I make a list of numbers by tenths?

Question

我知道1:10会给我一个从1到10的所有整数的向量，但是我怎样才能得到从1到2的数字上升十分之一（即1.0,1.1,1.2，...，2.0）？

Answer 1

Try seq

> seq(1, 2, by = 0.1)
 [1] 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0

Answer 2

Just in the spirit of there is more than one way to do things, another option is:

> (10:20)/10
 [1] 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0