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Topic: BETI: Bitcoin Exponential Trend Index and technical analysis - page 43. (Read 110414 times)

full member
Activity: 228
Merit: 100
Great work jl2012.  I'm not trying to highjack your thread because I can't replicate your great analysis and calculations, but my website seems to go hand in hand with what you're doing here.  Please check it out and I hope someone else on this thread finds it useful as well. www.cryptocoinstats.com
 jl2012, I'll continue to read your updates.  Thanks again.
legendary
Activity: 2282
Merit: 1050
Monero Core Team
...
Again you are entitled to your opinion, just don't forget that I bought a castle with the proceeds I made with following my trendline. Bullshit walks.

Actually the really tricky part was avoiding a million dollar plus "goxing" of the proceeds at the eleventh hour of the MTGox collapse.
legendary
Activity: 2282
Merit: 1050
Monero Core Team
If there were reliable valuation of bitcoin before MtGox, I'm happy to include that in my model. Anyway, it doesn't make sense to include Jan 2009 as the price was 0 and (log 0) is undefined

There is no reliable valuation, I have been searching for it, but the trades were so small and far between. In Jan 2009 the only trade I know of was conducted at $0.001. Later that year there are trades at $0.003 and $0.0054 at least.

 This dataset apparently shows that in 1-6/2010 the price meandered between $0.0028933 and $0.0075.

It is general knowledge that the opening of Mt.Gox raised the price significantly (to $0.05-$0.08). I have been saying for long that before 2010-7-7 there was never a bitcoin trade conducted at higher than $0.01. Of course I cannot prove it, but anyone can disprove it is he has the knowledge.

My trendline has been using the fixed price of $0.05 for all the months up to 6/2010. I have checked that it makes very little difference to alter the data according to individual trades between $0.003-$0.0075, and in my opinion it is not even honest research to do so, since there is not enough evidence to indicate that these isolated trades would be representative of a general price level, which Mt.Gox prices certainly are.

If one goes to the right side of the page and closes the graphs one finds daily data for both New Liberty Standard and Bitcoin Market in terms of 1 gram of gold via pecunix from January 16, 2010 to June 07, 2010.
legendary
Activity: 1414
Merit: 1000
Also as you can see from the same link, my model which has the price data from 1/2009 (unlike all the models that arbitrarily ignore the data prior to Mt.Gox, including the one in OP) does very well with the 2011 slump, giving a buy signal at $2.28 (similar signal was given at $71 last summer and at $460 in 2014-3-31).
Let me get this right... You have, by hand, *estimated* the pre-mtgox prices, and then boast that the regression analysis of those made-up prices gives you excellent results for the 2011 bubble?

No, it does not give any selling signals for the 2011 bubble, because at that time the data is not yet fitting to a steady exponential model (long time flat and then explosive growth). I could not have used this model at that time.

But after the bubble, the bolded part above would have shown the buy point. That is now fixed as the "buy signal" area, due to the reason that it was a correct buy point. Using this definition for a buy signal, correct signal for 7/2013 was provided, and I am pretty sure the current one is also correct.

Sell signal was calibrated in 4/2013 and applied first time in 11/2013.

- Trendline comparison: we are now at -0.367 log units. The trendline is at $993 and rising $7 per day, conclusion: rock bottom

In other words, because we are drastically below the trendline right now, in your words "rock bottom", now is a good time to buy.

Yes, because a "buy signal" has flashed for the first time in 9 months, and we are 10% below it.

Quote
What this claim completely ignores however, and which is beautifully visible in jl2012's presentation, is that around October 2011 we hit "rock bottom" as well, but in reality we had about another halving (or more) of price ahead of us, i.e. it would have been well ahead of time to buy back.

His model does not have fixed "buy" and "sell" signals, afaik. So it is impossible to evaluate its goodness from a trader's perspective. My model has both buy signal (-0.3 when reached first time after a bubble) and sell signal (+0.45 and then follow the market). It has given 1 confirmed excellent buy signal (7/2013) and one confirmed excellent sell signal (11/2013). I am not claiming anything more, but I also don't know of any trendline that actually has performed better in timing the bitcoin price. 

Quote
"we can only go up now, because: rock bottom" is in no way justified by the accuracy of the model.

Again you are entitled to your opinion, just don't forget that I bought a castle with the proceeds I made with following my trendline. Bullshit walks.
When the ruin is a castle then your agenda is pretty clear ...
legendary
Activity: 1470
Merit: 1007
[snip]

His model does not have fixed "buy" and "sell" signals, afaik. So it is impossible to evaluate its goodness from a trader's perspective. My model has both buy signal (-0.3 when reached first time after a bubble) and sell signal (+0.45 and then follow the market). It has given 1 confirmed excellent buy signal (7/2013) and one confirmed excellent sell signal (11/2013). I am not claiming anything more, but I also don't know of any trendline that actually has performed better in timing the bitcoin price.  

Agreed on that point. I disagree with a lot of your analysis, or more precisely: with the certainty with which you tend to present it to the newcomers, but you do make testable predictions. That's a big plus.

The castle... yeah. Good on you for that. But that's entirely unrelated to the question at hand. There are people on this forum that could buy 20 of those (by being early miners or investors), but they don't make market predictions. Keep those two items separate, please.
donator
Activity: 1722
Merit: 1036
Also as you can see from the same link, my model which has the price data from 1/2009 (unlike all the models that arbitrarily ignore the data prior to Mt.Gox, including the one in OP) does very well with the 2011 slump, giving a buy signal at $2.28 (similar signal was given at $71 last summer and at $460 in 2014-3-31).
Let me get this right... You have, by hand, *estimated* the pre-mtgox prices, and then boast that the regression analysis of those made-up prices gives you excellent results for the 2011 bubble?

No, it does not give any selling signals for the 2011 bubble, because at that time the data is not yet fitting to a steady exponential model (long time flat and then explosive growth). I could not have used this model at that time.

But after the bubble, the bolded part above would have shown the buy point. That is now fixed as the "buy signal" area, due to the reason that it was a correct buy point. Using this definition for a buy signal, correct signal for 7/2013 was provided, and I am pretty sure the current one is also correct.

Sell signal was calibrated in 4/2013 and applied first time in 11/2013.

- Trendline comparison: we are now at -0.367 log units. The trendline is at $993 and rising $7 per day, conclusion: rock bottom

In other words, because we are drastically below the trendline right now, in your words "rock bottom", now is a good time to buy.

Yes, because a "buy signal" has flashed for the first time in 9 months, and we are 10% below it.

Quote
What this claim completely ignores however, and which is beautifully visible in jl2012's presentation, is that around October 2011 we hit "rock bottom" as well, but in reality we had about another halving (or more) of price ahead of us, i.e. it would have been well ahead of time to buy back.

His model does not have fixed "buy" and "sell" signals, afaik. So it is impossible to evaluate its goodness from a trader's perspective. My model has both buy signal (-0.3 when reached first time after a bubble) and sell signal (+0.45 and then follow the market). It has given 1 confirmed excellent buy signal (7/2013) and one confirmed excellent sell signal (11/2013). I am not claiming anything more, but I also don't know of any trendline that actually has performed better in timing the bitcoin price. 

Quote
"we can only go up now, because: rock bottom" is in no way justified by the accuracy of the model.

Again you are entitled to your opinion, just don't forget that I bought a castle with the proceeds I made with following my trendline. Bullshit walks.
legendary
Activity: 1470
Merit: 1007
Your rant is based on a wrong understanding of my model. It has always featured a monthly recalculation of the trend (which for practical purposes does not differ from a running calculation).

Also as you can see from the same link, my model which has the price data from 1/2009 (unlike all the models that arbitrarily ignore the data prior to Mt.Gox, including the one in OP) does very well with the 2011 slump, giving a buy signal at $2.28 (similar signal was given at $71 last summer and at $460 in 2014-3-31).

Let me get this right... You have, by hand, *estimated* the pre-mtgox prices, and then boast that the regression analysis of those made-up prices gives you excellent results for the 2011 bubble?

You've got to be kidding, right? That's not how statistical modeling works.

In case you seriously need an answer to this: if you don't have data for some period, and you have no way to systematically extrapolate data for that period, you don't model that period. The End.

And about the glaring difference between your model and that of jl2012: you're correct that you recalculate the regression as well each month, but you don't *present* it that way. You keep posting the latest regression trend line, and then the discussion is always about that one, and how accurate it is, completely forgetting all the preceding ones.

jl2012's presentation on the other hand is much more "honest" if you want: it shows, in one graph, exactly what his model predicted at time step n, and what the actual price was at time n.

That way, everyone can see, at a glance, where a loglinear regression model was spot on, and where it missed the mark.

Which brings me to the second point...


Either I have subconsciously changed my mind and started to support you, or you have been misunderstanding my stance all along.

This is just too easy... I only need to go your post history of yesterday or so to find the following:

[...]
- Trendline comparison: we are now at -0.367 log units. The trendline is at $993 and rising $7 per day, conclusion: rock bottom

In other words, because we are drastically below the trendline right now, in your words "rock bottom", now is a good time to buy.

What this claim completely ignores however, and which is beautifully visible in jl2012's presentation, is that around October 2011 we hit "rock bottom" as well, but in reality we had about another halving (or more) of price ahead of us, i.e. it would have been well ahead of time to buy back.

It all runs down to the same criticism that applies to all log-linear price based methods:

They are an interesting tool to get an idea of what order of magnitude of price to expect for a given time, but they are *way* off at times, and trading advice of the form "we can only go up now, because: rock bottom" is in no way justified by the accuracy of the model.
donator
Activity: 1722
Merit: 1036
If there were reliable valuation of bitcoin before MtGox, I'm happy to include that in my model. Anyway, it doesn't make sense to include Jan 2009 as the price was 0 and (log 0) is undefined

There is no reliable valuation, I have been searching for it, but the trades were so small and far between. In Jan 2009 the only trade I know of was conducted at $0.001. Later that year there are trades at $0.003 and $0.0054 at least.

 This dataset apparently shows that in 1-6/2010 the price meandered between $0.0028933 and $0.0075.

It is general knowledge that the opening of Mt.Gox raised the price significantly (to $0.05-$0.08). I have been saying for long that before 2010-7-7 there was never a bitcoin trade conducted at higher than $0.01. Of course I cannot prove it, but anyone can disprove it is he has the knowledge.

My trendline has been using the fixed price of $0.05 for all the months up to 6/2010. I have checked that it makes very little difference to alter the data according to individual trades between $0.003-$0.0075, and in my opinion it is not even honest research to do so, since there is not enough evidence to indicate that these isolated trades would be representative of a general price level, which Mt.Gox prices certainly are.
legendary
Activity: 1792
Merit: 1111
every single other poster in this forum I've seen who uploads his variant of a log linear regression chart (including well known Finnish investors clowns) post their pretty picture with a straight line, saying proudly "look, how close price is at all times to that line!", only showing how pathetic their understanding of TA is. The point, as exemplified by your second graph, is that you need to look at the *running* calculation of a regression, based on the data *available at the time*. And then it becomes clear that, at least in 2011, price stayed for a long time deep below the trendline predicted by regression.

Your rant is based on a wrong understanding of my model. It has always featured a monthly recalculation of the trend (which for practical purposes does not differ from a running calculation).

Also as you can see from the same link, my model which has the price data from 1/2009 (unlike all the models that arbitrarily ignore the data prior to Mt.Gox, including the one in OP) does very well with the 2011 slump, giving a buy signal at $2.28 (similar signal was given at $71 last summer and at $460 in 2014-3-31).

Quote
And, as opposed to the aforementioned Finnish clown, whether that happens (bull or bear market in the meantime) is *not* answered by regression.

Either I have subconsciously changed my mind and started to support you, or you have been misunderstanding my stance all along.

If there were reliable valuation of bitcoin before MtGox, I'm happy to include that in my model. Anyway, it doesn't make sense to include Jan 2009 as the price was 0 and (log 0) is undefined
legendary
Activity: 2282
Merit: 1050
Monero Core Team
With the same dataset the current regression should correspond to rpietila's model. The main advantage I can see here is that one can easily tell what the prediction would have been at points in the past without clouding the issue with data points in the future. This is actually very useful. As for criticisms those that I made with respect to rpietila's model also apply here. https://bitcointalksearch.org/topic/m.6192769
member
Activity: 84
Merit: 10

A little harsh, maybe? Wink

To his defense, that Finnish clown does reference %'s below and above the trendline. Although, I agree that his assumptions that we won't stay below it for a long time because - well, just because - are his hopes, not real analysis.

I wasn t here in 2011 so you sure could help. But i would say that the landscape was quite different. Now we have a high rate of merchant adoption and every media is speaking about bitcoin. Things are going too fast. Of course, i will not take it for certain, but unless someone has a better argument than "it has happened in the past", i agree with him.
donator
Activity: 1722
Merit: 1036
every single other poster in this forum I've seen who uploads his variant of a log linear regression chart (including well known Finnish investors clowns) post their pretty picture with a straight line, saying proudly "look, how close price is at all times to that line!", only showing how pathetic their understanding of TA is. The point, as exemplified by your second graph, is that you need to look at the *running* calculation of a regression, based on the data *available at the time*. And then it becomes clear that, at least in 2011, price stayed for a long time deep below the trendline predicted by regression.

Your rant is based on a wrong understanding of my model. It has always featured a monthly recalculation of the trend (which for practical purposes does not differ from a running calculation).

Also as you can see from the same link, my model which has the price data from 1/2009 (unlike all the models that arbitrarily ignore the data prior to Mt.Gox, including the one in OP) does very well with the 2011 slump, giving a buy signal at $2.28 (similar signal was given at $71 last summer and at $460 in 2014-3-31).

Quote
And, as opposed to the aforementioned Finnish clown, whether that happens (bull or bear market in the meantime) is *not* answered by regression.

Either I have subconsciously changed my mind and started to support you, or you have been misunderstanding my stance all along.
legendary
Activity: 1792
Merit: 1111
On 11 Apr 2014, the price/trend ratio was the lowest since Feb 2013 (y-axis is ln(price/trend) )

legendary
Activity: 1792
Merit: 1111
Update:

Date:    11-Apr-2014
VWAP:    392.23
x:    1364
a:    0.00605
b:    -1.82543
Rsq:    0.88479
The day's expected price:    615.61
Predicted date for today's price:    26-Jan-2014
Days ahead:    -74.54
Daily price rank:    149
Predicted date for ATH ($1126):    25-Jul-2014
   
(See OP for explanation)   
   
   
   
https://www.wolframalpha.com/input/?i=e+%5E+%28+0.00604694820926662++%28+number+of+days+since+jul+17%2C+2010+%2Fdays+%29+-1.82542881007982+%29   
sr. member
Activity: 448
Merit: 250
Excellent work, OP!

I am currently bearish but having another look at this thread is making me re-think my outlook.

Thank you!

PS: BTC is really cheap right now. Note to myself: buy some coins today.
legendary
Activity: 1470
Merit: 1007
oda do i sense some jealousy in your tone? you may be good at understanding how log linear regression analysis works but to me that's useless if you got no track record to back it up... (btw jl2012 it's not directed at you i follow your analysis closely...)

Please note, the following is the only additional remark I'm going to make in here on the guy (besides bringing him up in my previous post), because it's OT and a disrespect to jl2012 and his great work: If you trust anything that windbag says, you will most likely get burned. His track record is incredibly poor (last year he claimed we'd hit 300k. Last month he predicted we won't go below 500 again. His only correct prediction I can remember: that we will touch 400 again.). As for his character (or that of his forum persona), I don't think I know a single more pompous poster in here than him, but that's ultimately my subjective impression, so you're free to disagree.
hero member
Activity: 833
Merit: 1001
oda do i sense some jealousy in your tone? you may be good at understanding how log linear regression analysis works but to me that's useless if you got no track record to back it up... (btw jl2012 it's not directed at you i follow your analysis closely...)

actions speak louder than words mate... that "clown" you speak of managed to nail price trends pretty well for the past 3 months, check his last posts and you'll understand what i mean...

Could you let us know how deep the lows of the 2011 and april 2013 bubbles were below your two trendlines? Percentage wise? How much below are we today?

In 2011 the low was about 0.1x of the trendline

The 2013 July low was exp(-0.31)=0.73x of the trendline

Now we are at about 0.82x




Thanks for the update, jl2012. I've said it before in here (did I? don't remember, actually...) you seem to be the only one who really understands how log linear regression analysis works... every single other poster in this forum I've seen who uploads his variant of a log linear regression chart (including well known Finnish investors clowns) post their pretty picture with a straight line, saying proudly "look, how close price is at all times to that line!", only showing how pathetic their understanding of TA is. The point, as exemplified by your second graph, is that you need to look at the *running* calculation of a regression, based on the data *available at the time*. And then it becomes clear that, at least in 2011, price stayed for a long time deep below the trendline predicted by regression.

Conclusions? Hard to say. If we continue today like we did in 2013, we will go back above the regression trendline soon. If we repeat something similar to 2011, we might stay below for much longer. That's the whole point: regression analysis is great for getting an idea of the likely order of magnitude of price in the future, but it can still be off by a large factor depending on whether we go through a long bull or bear market in the meantime. And, as opposed to the aforementioned Finnish clown, whether that happens (bull or bear market in the meantime) is *not* answered by regression.

/rant

Sorry for that, jl2012. Your work is much appreciated.


legendary
Activity: 2156
Merit: 1070
Could you let us know how deep the lows of the 2011 and april 2013 bubbles were below your two trendlines? Percentage wise? How much below are we today?

In 2011 the low was about 0.1x of the trendline

The 2013 July low was exp(-0.31)=0.73x of the trendline

Now we are at about 0.82x




Thanks for the update, jl2012. I've said it before in here (did I? don't remember, actually...) you seem to be the only one who really understands how log linear regression analysis works... every single other poster in this forum I've seen who uploads his variant of a log linear regression chart (including well known Finnish investors clowns) post their pretty picture with a straight line, saying proudly "look, how close price is at all times to that line!", only showing how pathetic their understanding of TA is. The point, as exemplified by your second graph, is that you need to look at the *running* calculation of a regression, based on the data *available at the time*. And then it becomes clear that, at least in 2011, price stayed for a long time deep below the trendline predicted by regression.

Conclusions? Hard to say. If we continue today like we did in 2013, we will go back above the regression trendline soon. If we repeat something similar to 2011, we might stay below for much longer. That's the whole point: regression analysis is great for getting an idea of the likely order of magnitude of price in the future, but it can still be off by a large factor depending on whether we go through a long bull or bear market in the meantime. And, as opposed to the aforementioned Finnish clown, whether that happens (bull or bear market in the meantime) is *not* answered by regression.

/rant

Sorry for that, jl2012. Your work is much appreciated.



A little harsh, maybe? Wink

To his defense, that Finnish clown does reference %'s below and above the trendline. Although, I agree that his assumptions that we won't stay below it for a long time because - well, just because - are his hopes, not real analysis.
sr. member
Activity: 448
Merit: 250
I think we are 2 months behind now Cheesy
legendary
Activity: 1470
Merit: 1007
Could you let us know how deep the lows of the 2011 and april 2013 bubbles were below your two trendlines? Percentage wise? How much below are we today?

In 2011 the low was about 0.1x of the trendline

The 2013 July low was exp(-0.31)=0.73x of the trendline

Now we are at about 0.82x




Thanks for the update, jl2012. I've said it before in here (did I? don't remember, actually...) you seem to be the only one who really understands how log linear regression analysis works... every single other poster in this forum I've seen who uploads his variant of a log linear regression chart (including well known Finnish investors clowns) post their pretty picture with a straight line, saying proudly "look, how close price is at all times to that line!", only showing how pathetic their understanding of TA is. The point, as exemplified by your second graph, is that you need to look at the *running* calculation of a regression, based on the data *available at the time*. And then it becomes clear that, at least in 2011, price stayed for a long time deep below the trendline predicted by regression.

Conclusions? Hard to say. If we continue today like we did in 2013, we will go back above the regression trendline soon. If we repeat something similar to 2011, we might stay below for much longer. That's the whole point: regression analysis is great for getting an idea of the likely order of magnitude of price in the future, but it can still be off by a large factor depending on whether we go through a long bull or bear market in the meantime. And, as opposed to the aforementioned Finnish clown, whether that happens (bull or bear market in the meantime) is *not* answered by regression.

/rant

Sorry for that, jl2012. Your work is much appreciated.

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