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- <?php
- function percentage_deadband($value,$previous,$deadband)
- {
- if($previous==0 || $value==0)
- {
- return false;
- }
- $n = $value / $previous * 100;
- if($n > 100){
- return $n - $deadband > 100;
- }
- if($n < 100){
- return 100 - $n > $deadband;
- }
- if($n == 100){
- return false;
- }
- return false;
- }
- function numeric_deadband($value,$previous,$deadband)
- {
- if($previous==0 || $value==0 || $previous == $value)
- {
- return false;
- }
- if($previous > $value){
- return $previous - $deadband > $value;
- }else{
- return $value - $previous > $deadband;
- }
- return false;
- }
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