"perf" used in script - Trading Software

"perf" used in script

Silver Dragon
2012-03-18 21:53:29

Hello,

What does the "perf" in the code below measure? Assuming it stands for performance?

buy = rule1 and (close * sma(volume, 10) > 50000 and close > 2) && ((perf(close, 35)) > (4)) && ((volume) > (1 * sma(volume, 5))) && ((perf(close, 10)) < (8));
sell = ((absolute((close / sma(close, 10)) - 1)) < (0.04)) || ((perf(close, 35) / perf(close, 5)) > (1.02));

Thanks!
SD

Juliettpapa
2012-03-19 04:15:52

Best Answer

Performance over x days in percent

Regards
Joerg

MDE
2019-07-09 17:08:47

Can you give us an example please? I still don't understand what performance means.

Is it the average of the dataset?How is performance calculated? If for example the dataset was (21,23,26,28,20) what is the performance?

The manual doesn't help has it just gives an example but doesn't show the result.

thanks!

MD

QuantShare
2019-07-10 07:56:19

The performance here is the return. Perf(close, 1), means the one-bar return. (Today close / Yesterday's close) - 1 and multiplied by 100.
You can plot any variable in a chart to have a visual confirmation (Right click on a chart pane and select "Edit formula")

MDE
2019-07-10 17:03:41

thanks! that makes sense now. perf = percentage change

Get more messages

No more messages

Back


Trading Items Identify Spilts Screener Script Market Timing Rules - Used to construct profitable trading strate... ADS Business Conditions Index System Metrics v2.0 Averaging Down Money Management Strategy	How-to Lessons How to run a screen or a watchlist from a script How to get stocks for a particular index using the global script How to execute a script at regular intervals How to dynamically change the number of positions in a portfolio? How to create a custom trading indicator
Related Forum Threads Money Management Script variables and more Reuse optimization parameters from Strategy script in Money Mgmt How to remove trace/log-files by script Script to Toggle Hide Buttons Equity to Symbol - AMM / Script	Blog Posts QS Trading Software: Global Script Charting & Scripts - Manage stock charts using the global script Sharpe Ratio - Part 2 How to Reference Drawing Studies in QS Formulas Export Trading Orders from a Portfolio to a File