determining the greatest number

I have to work on signal power levels. Suppose if I have a receiver that is taking signals from some items. Each signal has a different power level how does the receiver determine which signal has a greatest signal.

I am trying to write a code in matlab by starting to generate 5 random variables but how do I put in loop so that the output y shows the highest number value???

[jonas]

Show an example.

[Archita Keni]

suppose if I have rand(1,5) how should i write program that determines which out the random number is the largest number

[jonas]

y=rand(1,5)
max(y)

Answer 1

[jonas]

Read about the max function

You do not need to make a loop, and it is faster to work with vectors. If you want to take the random out of five samples, and repeat this n times, then it is faster to create a nx5 array and tell the max-function to operate along the 2nd dimension (columns)

y = rand(n,5)
max(y,[],2)

Answer 2

[Image Analyst]

Try this

[maxValue, indexOfMaxValue] = max(y);
fprintf('The max value is %.3f, and it occurs at index %d.\n', maxValue, indexOfMaxValue);