Limit value to a function

I have this graphic (reached with a function), but I have to limit the y value to 1750 from x values 0:0.006, how can I do it? To give you an example, this is what I have to reach

Answer 1

[Fangjun Jiang]

y1=sin(0:0.1:10);
y2=min(y1,0.8);
plot(y2)

Answer 2

[Stephen23]

y = min(1750,y)