a_gnome said:
Hi David,
Could you elaborate on what your probabilities mean? For example they seem to be saying that the chance of it closing < 1.8601 is 67% and yet the chance of it closing > 1.8635 is 50.4% which is clearly not possible as these are exclusive outcomes which add up to more that 100%! Or are these figures to be taken merely as relative likelihoods? So the chance of it closing < 1.8601 is 67/50.4 times the probability of it closing > 1.8635?
very sorry, a_gnome, my wife was at the door, we had to go! I slipped up. I have just returned
and seen the error.
below are the corrected figues.
close<1.8601 .351 ] implies stay long ?
close>1.8635 .424 ]
close<1.8584 .217 ]
In general, the probablilities will not add up to 100, because between time a (eg. pre-open) and time b (eg close) many targets in both directions can and will be hit. so for today,according to my calculations pre-open, there was an 89% chance of hitting 1.8601 and simultaneously an 88% chance of hitting 1.8584. However they can only be hit in sequence and once some
high(say 8601) is made, the probability of hitting the low (say 8584) collapses somewhat viz. in this case the pbty of hitting both drops to .774, not .787 which might have been expected. I think it only coincidence that the above corrected figures do indeed add to nearly 100..
Since at a certain time I am more interested in what the close is likely to be because I want to go to bed, i looked at the close pbtys. but the highs and lows are still very much in play as follows;
1.8666 .533
1.8635 .97
1.8554 .512 ( transcription error, pre-open should have been .593)
1.8538 .307 (another error, pre-open should have been .44)
1.8524 .217
i have not streamlined the production of these figurest, still a lot of manual composition.
Since i started this post I have just noticed a big red bar being written with a low nearly fulfilling that 51.2% pbty for 8554! (I should have stayed short with my system)
i'm off to bed shortly, not a midnight owl.