One data but different representation on Trend and Hypertrend

[WhiteRose]

I displayed the same data on Trend and Hypertrend but I got 2 different kind of curves. It seems the curve on Trend indicates exactly the data flow and something is wrong with the curve on Hypertrend.Any one can solve this problem? Many thanks

[Ryan.S]

I think both of them are correct. See my attachment, the trend from 15:05:10 to 15:05:30 are almost same. The only difference is that the trend on hypertrend object moves directly from valueA to valueB, while the one on Trend object moves smoothly when the value changes. That's because of the sample interval of the trend object. From the pic, the sample interval you set seems to be 0:00:5.  But the hypertrend reads the data from the database, which doesn't use sample interval. The data is logged to database whenever it changes and passes the filter. So I think the hypertrend show the real data trend, but the Trend object has some distortion because of the sample interval.

[WhiteRose]

Thank you in advanced, Ryan. I think you are right. One more question: I prefer the curve like on the trend than on the hypertrend. Can you give me a hint to manipulate the hypertrend so that the curve is smooth like the one on the trend?

[Ryan.S]

But I think the trend on Hypertrend is exactly how the data value changes. You can't manipulate the hypertrend like the Trend Object.

[WhiteRose]

Thank you once again Ryan. Actually, I don't understand why becoming such edges (in the black circle) on hypetrend when the data value changes. I wish to get the curve like the black one. Can I eliminate unexpected edges?

[Ryan.S]

The hypertrend just reads and shows all the data that recorded in the database. I guess that those unexpected edges did happen when the value changed.

Follow this article to import the data from Citadel into Excel to check. If those spikes do exist in database, I believe it's the real data.

http://zone.ni.com/devzone/cda/tut/p/id/2970