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i have used the trace option and i can confirm they are the same as on the csv. my problem is that the buffer output on csv or trace are not the same as when the value when i plotted the indicator on mt4. the indicator on mt4 sometimes goes > 1 or < -1 but the output from trace and csv files all between <1 and > -1. trust me that when the indicator is showing a value, the trace and csv is showing different number regardless of positive/negative and hence colors. i also use index 1 to get indicator value to make to get the candle close indicator value because current will always change.
please use the fisher indicator on usdjpy pair and same date and time span and see yourself the result if say they are the same.