Rolling growth rate in panel data

[Jaweriah Abdullah]

Hi
I have a panel data set with T=30 and N=15
I want to calculate rolling growth rate for 5 years

I know that growth rate can be calculated using the following two options as mentioned in previous posts (for example https://www.stata.com/statalist/arch.../msg00664.html)

 by id: g growth=(gdp[_n]-gdp[_n-1])/gdp[_n-1]  
 ​​​​Or  
  D.(loggdp) (which is more like change

I am not sure how to adjust both the above for the rolling window. Any suggestions will be appreciated Thanks

[Jaweriah Abdullah]

I think Nick Cox already answered this question (https://www.statalist.org/forums/for...using-rangerun)
(probably need to work on my key word proficiency)
however can the same be done using the prefix d.