Hello Support,

I have few issues with your JForex platform and strategy tester. I wrote a simple strategy (see att.), which makes sell or buy orders depending on stochastic indicator values. However the values I'm getting in JForex charts seems to be different than the one I get from JForex API.

Issue no. 1 - the order is submitted in 'onBar()' method. When I submit an order I give it a comment with the time of current bar. However on the chart it is marked on the previous bar (see screen1)

Issue no. 2 - in the message window I print values of stochastic indicator, based on which the strategy decides to submit an order. The values I see on the chart are different from the values that are printed in the message window. I'm not able to find stochastic indicator value from given time moment on chart (e.g. on the screen %K=73.77, %D=75.59; on the chart for %K=73 the value %D is around 80)

Thanks a lot for your feedback.
Best regards,
m_ax

Please, provide the screenshots and the relevant strategy source code fragments.

The problem may be in the fact that onBar method is called when a bar is finished, i.e. it is called at bidBar.getTime() + period.

Hi,
I’ve added necessary files.

BTW yesterday the board was acting strangely. I haven’t got an option to add files and I was posting this message in ‘Bug reports’ branch. Today because I couldn’t see it in the ‘Bug reports’, I’ve sent the message again (you can probably reject it) and during posting I could add files. Can this be somehow connected to browser I’m using (Opera 11.51)?

Best regards,
m_ax

Please, check two things:
1) Indicator on the chart and in the strategy must have equal input parameters. In the strategy default parameter is MaType.EMA whereas in the screenshot SMA is used.
2) The chart displays time in GMT time zone, but your strategy prints it in CEST.

Here is a way to print GMT time:

SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss") {{setTimeZone(TimeZone.getTimeZone("GMT"));}};
System.out.println(sdf.format(bidBar.getTime()));

Ad. 1 The stochastic indicator values issue is presented on screen 2, where MaType.EMA is used. See new attachment (screen 3) where again EMA is used an the values between strategy output and chart are diffrent.

Ad. 2 I added suggested settings with the time zone. However now the marker is one hour late (in the screen 3 it is placed on 08.00 hour bar, but should be on 07.00)

Regards,
m_ax

onBar method is called when a new bar is created. The bar with index 0 in history corresponds to the new unfinished bar. Whereas index 1 corresponds to the last finished bar, that is also passed to onBar as askBar and bidBar. Therefore, the value of indicator at lastBarTime is not final and will change after the bar is finished.

I've made corrections to bar time retrieving. Now the marker on the chart is correctly described. However I still don't understand why the value of stochastic indicator fetched in strategy is diffrent than the value showed on the chart. As you can see in attached screen no. 4, for two previous bars I'm getting values for %D around 16 and 13. But there is no such low %D value on the chart at all.
Regards,
m_ax

Why this post is now under 'Fixed Bugs' ? The value of stochastic indicator retrieved from API is diffrent than one showed on the chart.

It is fixed and will be available in a next release.

Can you please write in what version fix will be available?
Best regards,
m_ax