[amibroker] Average and Standard Deviation for all data

["pmxgs" <pmxgs@xxxxxxxxxx>]

Hi,

 I would like to calculate the average and standard deviation for all the data available in an array.
 For example:

  calc1=C-ma(C,30);
   
   I would like now to calculate an average and std. dev. of calc1 which gets updated as new bars appears.
 This average and std. dev. include all the available data.

  I have tried MA(calc1,barssince(not(isnull(calc1)))); but it doesn't work.

Any suggestions?

thanks 


  



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