MATLAB: Use the first value after using polyfit

Question

I am using the polyfit function and need to analyze the results but I am not sure quite how. My code so far is here:

function result = highest_coeff(x,y)
  x = [0 1 2];
  y = [0 1 2];
  coeffs = polyfit(x,y,2);
  result = coeffs;  
end

I need to analyze the results and find the first "value" that is greater than or equal to 0.1 or less than or equal to -0.1, then return the position of that value. For example when I run this code through the command window I get:

 disp(highest_coeff(x,y))
  -0.0000    1.0000   -0.0000

Here the first value is not >= 0.1 or <= -0.1, so the answer would be 2. Does anybody have any tips or solutions for this problem?

Answer 1

find( abs(highest_coeff(x,y)) >= 0.1 )