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24-Ruby III

## Mathcad predict function

Mathcad predict function and Rub/\$ ratio

10 REPLIES 10
13-Aquamarine
(To:ValeryOchkov)

Don't invest on stocks using this? 🤣

21-Topaz II
(To:ValeryOchkov)

Hi

it's a life that I use this function .... indeed since it is not useful ... I don't use it anymore ....

24-Ruby III
(To:-MFra-)

13-Aquamarine
(To:ValeryOchkov)

Hello,

Well I am new with this function, but I saw a lot of bad comments about it in the community. However in the PTC Help Center includes a great example of this function.

I have a very similar curve from a stock market. I am using this function and it seems that sometimes works, sometimes not. I am guessing that is because the quantity of the sample used to predict. In your posts, you use like a half of the range (k=0..99 so n=50), and yu have very good results. I am trying.

If this fails, I am thinking also in Taylor or Pade aproximations. Do you have any suggestion on this? Am I believing in Santa Claus?

Thanks for the comment!

24-Ruby III
(To:rubenvillarreal)

A cyan woman comes up to me on the street and says: "Let me tell you a fortune and predict your future!" I answer her: "Go to the stock exchange and predict there!"

21-Topaz II
(To:ValeryOchkov)

Hi,

things are very different when dealing with random variables. I used it to predict the extraction of six numbers placed in increasing sequence (i.e. for each extraction the numbers are arranged with the smallest on the left and the largest on the right) and on the basis of a fairly large sample, knowing, of each of them, the statistical distribution (using the histogram function) based on the position of the same with respect to the others. But the predict function, at most, found two, each belonging to one of the first three columns.

13-Aquamarine
(To:ValeryOchkov)

I found some interesting results. Maybe predict is not the best method, but in comparison to the other techniques of prediction of the Market, this thing is gold. World is crazy. I still will try with other options and if someone had some ideas, suggestions and critics, all are welcomed!

In the example, O is a matrix that indicates the closing price of the market in 1-minute interval.

Matrix size: +15500 values.

13-Aquamarine
(To:rubenvillarreal)

This thing is ! (now I can say it with a background)  😅

21-Topaz II
(To:ValeryOchkov)

13-Aquamarine
(To:-MFra-)

That's less than 40%. Is there another way to extrapolate functions here?

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