How to set a threshold in Matlab Such that If the value is close to the maximum

Question

How to set a threshold in Matlab

Such that

If the value is close to the maximum value or equal to the maximum value, then take the index of the minimum value, otherwise take the index of the maximum value

For example

If I have

Index   value

1       50

2       49

3       48

4       20

5       9

Here the maximum value is 50, but 48 is very close to it, so I want to take the index of 48, which is 3

And if I have

Index   value

1       100

2       20

3       5

4       2

5       1

Here the maximum value is 100, and all other values are not close to it, so I want to take the first index, which is 1

I want to do this for multiple arrays

Can you help me with that

Explanation / Answer

Firstly find the maximum value in the array, then specify the range(value) till which you consider any value close to that maximum value.

Then perform compare operation step by step and note the most nearest value to the range value that you consider close to that maximum value

If you get any value more than that range value specified by you, then that is your required threshold value(nearest to the range or range value itself) and you may proceed printing its index value

While if you get all values less than your specified range value, then print the index of the largest value

I hope you understood. Thanku

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