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    Ref() function

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    This topic contains 1 reply, has 2 voices, and was last updated by Seer Seer 8 years, 11 months ago.

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    • July 19, 2013 at 10:59 pm #3243

      waterstreet
      Member

      i am trying to REF to a historical number. i understand the example given

      ref(Close,-1); # which shows the last close of a bar.

      but what if i want to show the last value of a indicator for example 

       my $mom =Momentum(Close,50);
  my $mom1 = ref($mom,-1);

      i tried that but it gave me the error ” Too many arguments for reference-type operator ”

      July 22, 2013 at 9:57 am #3245
      Seer
      Seer
      Keymaster

      The best way to get the last value from a column/indicator in an event is with Now:

      Output Now(Momentum(Close,50)); #return the value for Momentum(Close,50) for the current bar

      and if you want to go futher bar in time, you can use Ago:

      Output Ago(Momentum(Close,50),5); #return the value for Momentum(Close,50) 5 bars ago

      Both Now and Ago return a value, while Ref returns a column and you would typically use Ref when building indicators.

      The error, ”Too many arguments for reference-type operator ” is due to you using “ref” rather than “Ref”.

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