count_num.m

802.11仿真源码 对分析RSSI很有用的

function [First, Last] = Count_num(array, int)
% Given an array and an integer, this function returns the first occurance 
% of that integer and the number of integers that occur within the array

count = 0;
i = 1;
initial = 0;
first = 0;

while(i<=length(array)) 
    if(array(i) == int)
        count = count + 1;
        if(initial == 0)
            first = i;
            initial = 1;
        end
    end
    i = i + 1;
end

First = first;        
Last = count + first - 1;