The Problem with Technical Analysis

This is a discussion on The Problem with Technical Analysis within the Technical Analysis forums, part of the Methods category; The problem with TA is simple, it's in its calculation, which is hardly ever objective and almost always subjective. What ...

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Old Sep 6, 2017, 12:02am   #1
Joined Aug 2017
The Problem with Technical Analysis

The problem with TA is simple, it's in its calculation, which is hardly ever objective and almost always subjective. What do I mean by this ? Very simple really, we as traders are trying to forecast where future prices might be. A future price is a number in the future which is itself based on numbers. Therefore why should we not use the claculation of number to analyse prices ? There really seems no good reason why this should not be the case.

Let's take the old example of drawing trend lines. The phrase itself should make you gringe, tell you that something is untoward, it means exactly what it says using your hand to draw a trendline. Bearing this in mind, we should know that no two people are going to draw trendlines the same. Yes I am well aware of the so called rules of drawing where you join higher lows to even higher lows to get an uptrend and lower highs with lower highs to get a downtrend. But even then, where is the objectivity in this, what math was used to get this result ? None, so just because some guru says it is so then all it means is this is the way he draws lines , it is no more valid than the way how you or I or anybody draws lines.

Solution: Use linear regression , that will produce an objectively drawn straight line through all the data points calculated by maths, available freely on many broker software

NB. This is still very very basic there are even better ways to produce trendlines.

Now let's come to another bugbear of mine RSI. This is supposed to measure changes in the momentum of prices in hope that you can forecast where they will go in the future.

Momentum is a concept well establish in physics and is calculated by p = m * v, where is p = momentum , m = mass and v = velocity.

So why is it calculated by this concoction:

RSI = 100 - (100 / 1+ RS)

Where RS = Average of x days\' up closes / Average of x days\' down closes


This has no foundation in any concept in hard science and has been plucked out of the air or even other places by Welles Wilder. It is thoroughly unobjective and totally subjective. What true value does it have ?

Solution : Use equations based on proven hard science concepts.


NOTE: THIS IS NOT ABOUT IF TA WORKS OR NOT; THIS IS ABOUT HOW MOST TA IS CALCULATED, END OF.

Also nothing to stop people from using both

Last edited by wisefoolx; Sep 13, 2017 at 1:29pm.
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Old Sep 6, 2017, 12:32am   #2
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What if price movements aren't based on any objective laws, but are instead based on subjective judgment of key market participants. Subjective laws. Do your complaints about the need for objectivity still hold?

Anyway, good post. Mostly agree.

Last edited by seekingTruth16; Sep 6, 2017 at 12:38am.
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Old Sep 6, 2017, 12:41am   #3
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Originally Posted by wisefoolx View Post
Solution : Use equations based on proven hard science concepts.
Good idea. But do you dare to place a trade using that ? If not, then it's useless. Things like that can easily be tested through a call out.
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Old Sep 6, 2017, 1:40am   #4
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wisefoolx started this thread NO.

I knew this would happen, the article says NOTHING about what works and what doesn't. It does NOT care, that is an individual choice ( what type of TA you use ).

However it demands this : A future price is a number in the future which is determined by numbers in the past. Therefore why should we not use the claculation of numbers to analyse prices ?
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Old Sep 6, 2017, 1:43am   #5
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Originally Posted by EnlightenedJoe View Post
Good idea. But do you dare to place a trade using that ? If not, then it's useless. Things like that can easily be tested through a call out.
Good idea ? LOL.

What do you know about TA, you're a MM trader , you stick your finger in the air and blow with the wind.

Get out of here, stop chasing me around.
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Old Sep 6, 2017, 1:45am   #6
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Quote:
Originally Posted by seekingTruth16 View Post
What if price movements aren't based on any objective laws, but are instead based on subjective judgment of key market participants. Subjective laws. Do your complaints about the need for objectivity still hold?

Anyway, good post. Mostly agree.
Your answer is in #4
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Old Sep 6, 2017, 1:54am   #7
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Originally Posted by wisefoolx View Post
Good idea ? LOL.

What do you know about TA, you're a MM trader , you stick your finger in the air and blow with the wind.

Get out of here, stop chasing me around.
I don't need to know about TA. But, I do know people using TA or your pseudo-TA won't dare to call out trades using it.
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Old Sep 6, 2017, 9:26am   #8
 
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Quote:
Originally Posted by wisefoolx View Post
NO.

I knew this would happen, the article says NOTHING about what works and what doesn't. It does NOT care, that is an individual choice ( what type of TA you use ).

However it demands this : A future price is a number in the future which is determined by numbers in the past. Therefore why should we not use the claculation of numbers to analyse prices ?
That would make sense if future price is indeed determined by price in the past. Your argument is based on that assumption which I think is doubtful. You could say equally that future pattern of prices is determined by past patterns - which most ta is based on. Just substituting numbers for patterns makes no difference.
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