title: Limit data values displayed in MATLAB histogram
body: <p>I have a vector that I want to print a histogram of of data for. This data ranges from -100 to +100. The amount of data around the outer edges is insignificant and therefore I don't want to see it. I am most interested in showing data from -20 to +20. </p>
  
  <p>1.) How can I limit that window to print on my histogram?</p>
  
  <p>The amount of data I have at 0 outnumbers of the amount of data I have anywhere in the dataset by a minimum of 10:1. When I print the histogram, the layout of element frequency is lost because it is outnumbered by 0. </p>
  
  <p>2.) Is there a way that I can scale the number of 0 values to be three times the number of -1 entries?</p>
  
  <p>I am expecting an exponential drop of this dataset (in general) and therefore three times the frequency of -1 would easily allow me to see the frequency of the other data.</p>