From theory to practice. Part 2 - page 113
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Once again, I am convinced that if a patient is palliative, there is no help for them.
Palliative how?
They prefer to ignore anything that does not fall within the narrow scope of their understanding.
It would be a good idea to include account statistics with such statements.
Does anyone here even realise that the mathematical expectation is NOT the arithmetic mean?)
Ask the comrade above. He knows everything!
Does anyone here even understand that the mathematical expectation is NOT the arithmetic mean?)
MO is zero. What the constructed model should aspire to.
But it should not just aspire to, it should adequately describe the input data.
That's why the automaton's post about sample window size didn't quite get what the comrade wanted to say.
For example
Blue is the original series.
The gray model is built.
I set some model window, but the model does not accurately describe the input data.
but the model does not accurately describe the input data.
it is not clear what the machine wanted to say about the window size.
Does anyone here even understand that the mathematical expectation is NOT the arithmetic mean?)
Absolutely right. Oleg's matcad calculated a sample average. Because it can't calculate anything else for the sample. He (matcad, not Oleg) is dumb and does not know that it is a sine with MO=0. And the best estimate of MO for a sample is 0.
Not all patterns are of interest to the big players, as some of them may well be poorly scalable in capital intensity and therefore may simply be unprofitable for them. But, such "skinny" patterns may be of interest to small players like us.
Alas all. Everything is being swept clean now, manual scalping is dead, the fastest is the one who eats everyone else. But this does not mean that one cannot act in the same way and compete with the best. But we need a different approach to research, not what many people are doing, pushing Eurobucks in 100500 different classifiers in the hope for a miracle, or tester fitting, it's just a child's play.
Data gentlemen, data...
Absolutely right. Oleg's matcad calculated a sample average. Because it can't calculate anything else for the sample. He (matcad, not Oleg) is dumb and does not know that it is a sine with MO=0. And the best estimate of MO for a sample is 0.
The sample mean CAN only be an MO estimator, but only if a) the MO exists, b) the sample is independent, c) the sample is equally distributed. For a sinusoid, point (b) is exactly violated, because there is a rigid relationship between the elements in the sample.
In general, please do not call "expectation" what is called "the mean value of a function on a segment".
Absolutely right. Oleg's matcad calculated a sample average. Because it can't calculate anything else for the sample. He (matcad, not Oleg) is dumb and does not know that it is a sine with MO=0. And the best estimate of MO for sampling is 0.
There is a complete lack of understanding...