What Does the trading Signal Means

Hi ,



Took up the course "Quantitative Trading Strategies and Models" - "Section-2 Technical Trading Strategies" - 13. Trend Based Strategy- 

There is a trading signal generated like 1 & -1.



Just wanted to know if the below interpretation is correct 



  1- Mean Buy signal

 -1- Means Sell Signal .



Is my understanding correct 

Yes, your understanding is correct. +1 is used to denote the buy signal and -1 for the sell signal.