chanigng response scale, VAR

[yang]

Hello~
I am using the VAR and Impulse-response
In order to make the response in other specification,
I would like to adjust the response unity(1) at its peak.
I mean that in Yais, the response value should be changed 1(unit) at its peak.
For example, the response's peak is 0.0229.
How can I change this peak to unity(1)

Thanks in advance.

Yang