Hi,
for all who love the free Super Trend Indicator from Robinson (
https://codebase.mql4.com/4725 ) a systematic large-scale analysis of Super-Trend parameter influence and recommendations for the best parameters for all major FOREX pairs is given here:
https://tradingresearch.wordpress.com/2011/08/15/evaluation-of-super-trend-indicator's-parameters-for-all-major-forex-pairs-over-12-years/( as tiny url:
https://wp.me/p1M1iZ-6 )
The analysis is based on >12 years back testing for each currency pair.
Hope this helps in selecting your best parameters :-)