Does trendline work?

Indeed
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Your graph is not sloping trendline

 

should it be? Here we go...

 

Stock master masterpiece

 

Here's a little slope and horozontal teamwork.

 

1 graph vs too many not working slope graphs

 

Post 'em up!
Let's have a look.

 

Randomly look at live charts then you can find it.
It is common sense that no way a raise or drop trend keep a specific slope means it will continue. Most of the time the slope keep changing and it is stupid to consider the trend change once it breaks a slope.

 

Why not post a few of the non-workings that you have discarded? We can learn more from the dogs than from the darlings. Whattya got?