DHT11 Matlab code help not simulink

clc; clear;
s1 = serial('COM3'); time=1000; i=1;
while(i<time)
    fopen(s1); fprintf(s1, 'Your serial data goes here'); out = fscanf(s1);
    i=bin2dec(out(1:4));
    figure; subplot(211); plot(i,'g'); axis([0,time,20,50]); title('Parameter: DHT11 Temperature'); xlabel('---> time in x*0.02 sec'); ylabel('---> Temperature'); grid
    i2=bin2dec(out(5:9));
    subplot(212); plot(i2,'m'); axis([0,time,25,100]); title('Parameter: DHT11 Humidity'); xlabel('---> time in x*0.02 sec'); ylabel('---> % of Humidity '); grid
    fclose(s1); i=i+1; drawnow; end delete(s1); clear s;

My code is above and i bought the DHT11 sensor for an arduino project. I am getting a read out of ^$#% or something along that, differs from each reading. The DHT11 sensor is suppose to read out the temperature and the humidity. How do i get the DHT11 sensor to read out data, in what form does it read out in(binary or characters?) and how am i supposed to convert it to readable temperature and humidity levels?

Thanks, Michael M