//this calc has no data[0], just a lower and upper estimate. set data[0] to lower estimate.
data[0] = data[1];
if (data[1] > data[2]) { data[1] = data[2]; data[2] = data[0]; }
- data[0] = data[1];
+ data[0] = -1.0; //no value
if (isnan(data[0]) || isinf(data[0])) { data[0] = 0; }