SMA Data Cleaner

##SMACleaner

This virtual sensor consumed only one data item at a time and maintains the simple moving average (SMA) of the values received. Based on the SMA, the current value and the acceptable error threshold, the virtual sensor returns 1 if the current value within the error threshold and 0 otherwise.

Parameters:

• size: A positive integer value representing the size of the window to be used for maintaining the SMA.
• error-threshold: A positive real value (between 0.01 to 1.00) which specified the maximum acceptable deviation from the SMA.

Sample code:

<processing-class>
 <class-name>gsn.vsensor.SMACleaner</class-name>
 <init-params>
   <param name='size'>5</param>
   <param name='error-threshold'>0.15</param>
 </init-params>
 <output-structure>
    <field name='raw_value' type='double'/>
    <field name='acceptable' type='double'/>
 </output-structure>
</processing-class>