|Mar18-10, 10:30 PM||#1|
MATLAB Help - Comparing values/Indexing
1. The problem statement, all variables and given/known data
I am very, very new to MATLAB, and can't seem to figure out this seemingly simple problem.
Given a t-array and a y-array for a decaying exponential function, my task is to find the first relative maximum in the graph without using Matlab's preset relative max. functions. I'm attempting to do this by comparing y-values at a certain "t" to y-values at "t0" and "t1" (before and after "t"). I'm using indexing, for loops, etc.
2. Relevant equations
3. The attempt at a solution
function[max,t_max] = relMax(t,y)
for i = 1:.001:length(t);
y(:,i+1) = y;
y0 = y(:,i);
y1 = y(:,i+2);
if (y0<y && y>y1)
max = y;
t_max = t;
Clearly I am making some kind of stupid mistake here. I don't really know how to use indexing very well, and it's causing me problems.
Thanks in advance!
|Mar19-10, 08:27 AM||#2|
for i = 1: length(t)
0.001 is the increment in t, not in the index.
|Mar19-10, 11:19 AM||#3|
Thank you! I figured out what I was doing wrong. :)
|compare, indexing, matlab|
|Similar Threads for: MATLAB Help - Comparing values/Indexing|
|Chemistry: Comparing the Rf values of carotene and lycopene?||Biology, Chemistry & Other Homework||0|
|Urgent help needed for question on electrolysis & comparing Eo values||Chemistry||2|
|Matlab: Figure, Mouse, Coordinate Values||Math & Science Software||0|
|[Matlab] How to save the obtained values.||Math & Science Software||1|
|Indexing a website||Computing & Technology||13|