How I can write in code for the Maximum value of 'Y' from left hand side not from right hand side in following figure?

Answer 1

[Dyuman Joshi]

Answering according to the image

x=[1 2 3 4 5 6 7 8 9 10 11 12];
y=[3 4 3 2 1 2 3 4 5 6 5 4];
plot(x,y)

locmax=islocalmax(y)

locmax = 1×12 logical array
   0   1   0   0   0   0   0   0   0   1   0   0

i=find(locmax,1)

i = 2

maxy=y(i)

maxy = 4

maxx=x(i)

maxx = 2