[jQuery] trouble calling a function

[nate]

Hello

I am trying to set up a toggle to allow users to show more precision
when a user clicks a button.  I have a function high() that doesn't do
anything when it is called.  I am fairly new to jQuery so I am not to
familiar with the syntax and am hoping that you can help me.

var   numeric_data = new Array();
$('.numeric', this).each(function() {
                data = parseFloat($(this).text());
                numeric_data.push(data)

});
i = 0;

this works
$('.numeric', this).each(function() {
                data = numeric_data[i];
                data = data.toFixed(2);
                $(this).text(data);
                i++;
});
i = 0;

this doesn't work
high = function(){
         $('.numeric', this).each(function() {
             data = numeric_data[i];
             data = data.toFixed(5);
             $(this).text(data);
                i++;
          });

}
high();

thanks,

Nate