How can I subtract consecutive numbers from one starting point?

Hello everyone,

So I have an array which I want to subtract from a starting point. Lets say I have a list of numbers [1,2,3,4 etc.] and I would like to subtract these from 200. So 200-1=199, 199-2=197, 197-3=194, 194-4=190. How can I do this. I need the array to maintain the same amount of vectors to plot my graph afterwards.

Thank you in advance.

[Jos (10584)]

I do not know what "I need the array to maintain the same amount of vectors to plot my graph afterwards." means, but see my answer below :-)

Answer 1

[Jos (10584)]

L = 1:4
SP = 200 
R = SP - cumsum(L)