Indicators: Differential indicator by Sultonov - page 4

 
Yousufkhodja Sultonov:
It is obvious that you are ready to disbelieve the simple algorithm of the indicator, which has drawn the fact of the Bears' activity decrease to the previous values, as evidenced by the rise and fall on the chart, about which you are having a heated argument with the code creator, who is absolutely sure in the correctness of the calculations.
Why should I not accept? I do not accept and do not reject, I am sure there will be a user of this indicator), I am not interested in the indicator, but I like the dispute).
 
Maxim Romanov:
It's so obvious that it doesn't require proof, it follows from itself)

Well, no way: you say A, you say B. )) There are two forms. To prove their similarity, all you have to do is calculate the correlation coefficient. If it is close to 1 or -1, it is a proof of similarity of two fragments of the function on different intervals. And to say: "I see it, why don't you see it?" in this case is simply unsubstantiated ranting for a purpose I don't understand.

 
Ihor Herasko:

To prove their similarity, it is enough to calculate the correlation coefficient. If it is close to 1 or -1, that is the proof of similarity....

no...

 
Vizard_:

no...

A very detailed and well-reasoned answer)

 
Yousufkhodja Sultonov:
Do you even understand this fact, or should I bring a fifth-grader to explain it to you?

Teacher, forgive us sinful fools)))))) No need for a fifth-grader)))))

 
Vizard_:

no...


And what do you think is the proof of the similarity of the forms of the two functions? Well, we are not going to consider clouds and say that bunnies and bears live there.....

 
Ihor Herasko:

And what do you think is the proof of the similarity of the forms of the two functions? Well, we are not going to consider clouds and say that bunnies and bears live there.....

Probably the right answer for him:

r≈0

 
Ihor Herasko:

And what do you think is the proof of the similarity of the forms of the two functions? Well, we are not going to consider clouds and say that bunnies and bears live there....

Well, admit it, when you were a child, you looked at it in this format =)

 

So, let's see what are the two bearish line shapes (red) that have everyone so excited:

We are talking about the areas bounded by blue (on the left side of the chart) and golden (on the right side of the chart) vertical lines. "By eye," indeed, one can see the similarities. The right side seems to be a mirror image of the left side. It seems that it is enough to turn any of them vertically, and we will get an exact copy of the second part.

To be sure of this, let's copy the readings of both parts into a table and see how these lines look on a different scale:

Even this representation clearly shows that the lines are not really the same. Our eyes have been misled by the different scale. And so as not to doubt the absolute difference in the shapes of the curves, let's calculate the correlation coefficient. It turns out to be -0.68907.

For those who want to check the calculations, I give the initial data in Excel-format.


Files:
 
Vitaly Muzichenko:

Well, admit it, when I was a kid I used to look at it in this format =)


Yes, unfortunately, there was no Excel back then. I had to make do with such formats. From matinstruments in those days I had only calculator Electronics, working from a socket. ))