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 Post subject: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Changes)
PostPosted: 23 Jul 2011, 19:52 
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FISO Knight
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Over the past few seasons, due to the diligence and hard work of Diamondplus and the FISO boffins, we have been able to offer an explanation of FPL price changes and the World Famous 'FISO Crack the Code' page detailing potential price risers, fallers and those players who are protected.

A link to this year's CtC can be found here.

A link to Stuboy's HELP page is here
Please use this thread to ask CtC-related questions not answered in the FAQ above.

A link to last year's thread is here.

Those wishing to understand the mechanisms of FPL price changes can read what we understood to be the case (in the 10-11 season) in the first few posts in the thread immediately above.


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 23 Jul 2011, 20:03 
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Moved from the 10/11 thread.

Murder1 wrote:
Quote:
Wow it's been a while since I've had the time to visit here!!

I'm looking to have some free(ish) time this summer to knock up another CTC application to replace the one I had at the start of last season.

Can anyone confirm if the first page of the thread is completely up to date or where some rules uncovered late in season? I know there's always the likelihood that something will be different in the coming season I'm just looking to see if I can't get to a certain point relatively quickly.


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 23 Jul 2011, 20:05 
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Moved from the 10/11 thread.

Diamondplus wrote:

Quote:
Okay. I give up.

Anyone know how to get hold of the raw data?


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 23 Jul 2011, 21:03 
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Flyman wrote:
Moved from the 10/11 thread.

Diamondplus wrote:

Quote:
Okay. I give up.

Anyone know how to get hold of the raw data?


Forgive me for quoting myself. (:

Thanks to the advice in another thread, there seems to be raw data available if you log into the transfer page and look "behind the scenes". However I still need the total team counts from somewhere.


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 24 Jul 2011, 00:19 
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diamondplus wrote:
Flyman wrote:
Moved from the 10/11 thread.

Diamondplus wrote:

Quote:
Okay. I give up.

Anyone know how to get hold of the raw data?


Forgive me for quoting myself. (:

Thanks to the advice in another thread, there seems to be raw data available if you log into the transfer page and look "behind the scenes". However I still need the total team counts from somewhere.

When I look at the transfer page and select "teams selected by %" from the dropdown on the right, it actually shows you the total number of teams each player is selected by rather than just the % as it did in the past! Hopefully this will remain for the season! If CTC can just grab this figure for each player, that would replace the need to calculate this figure via "teams selected by %" x "total teams", and get rid of the complications about adjusting for the rounding in the % figures etc.


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 24 Jul 2011, 10:47 
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reds363 wrote:
When I look at the transfer page and select "teams selected by %" from the dropdown on the right, it actually shows you the total number of teams each player is selected by rather than just the % as it did in the past! Hopefully this will remain for the season! If CTC can just grab this figure for each player, that would replace the need to calculate this figure via "teams selected by %" x "total teams", and get rid of the complications about adjusting for the rounding in the % figures etc.


And there was me thinking I couldn't see the decimal point and had better get stronger specs... :D


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 24 Jul 2011, 10:58 
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Red & Blue Braces
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reds363 wrote:
diamondplus wrote:
Flyman wrote:
Moved from the 10/11 thread.

Diamondplus wrote:

Quote:
Okay. I give up.

Anyone know how to get hold of the raw data?


Forgive me for quoting myself. (:

Thanks to the advice in another thread, there seems to be raw data available if you log into the transfer page and look "behind the scenes". However I still need the total team counts from somewhere.

When I look at the transfer page and select "teams selected by %" from the dropdown on the right, it actually shows you the total number of teams each player is selected by rather than just the % as it did in the past! Hopefully this will remain for the season! If CTC can just grab this figure for each player, that would replace the need to calculate this figure via "teams selected by %" x "total teams", and get rid of the complications about adjusting for the rounding in the % figures etc.



Cheers.

Status update:
Since I've got some time, I'm rewriting crackthecode using c#. I've successfully managed to automatically log in and grab the raw HTML, now I'm fiddling with the DataContractJsonSerializer class (Although I seem to be having a reference problem at the moment. Worst case scenario -- I'll manually parse the string myself!)


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 24 Jul 2011, 12:24 
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You're a legend diamondplus!! :D


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 28 Jul 2011, 01:59 
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Hard work will pay off

well done community is proud


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 28 Jul 2011, 15:46 
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Cheers man, thanks for the effort!
Let us know if any help is needed.


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 28 Jul 2011, 15:57 
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Class! Good stuff! Highly appreciated! 8-) :D


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 28 Jul 2011, 20:17 
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diamondplus wrote:


Cheers.

Status update:
Since I've got some time, I'm rewriting crackthecode using c#. I've successfully managed to automatically log in and grab the raw HTML, now I'm fiddling with the DataContractJsonSerializer class (Although I seem to be having a reference problem at the moment. Worst case scenario -- I'll manually parse the string myself!)


You lost me at status update. But a lot of people appreciate this.


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 29 Jul 2011, 17:23 
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Moist von Lipwig wrote:
diamondplus wrote:


Cheers.

Status update:
Since I've got some time, I'm rewriting crackthecode using c#. I've successfully managed to automatically log in and grab the raw HTML, now I'm fiddling with the DataContractJsonSerializer class (Although I seem to be having a reference problem at the moment. Worst case scenario -- I'll manually parse the string myself!)


You lost me at status update. But a lot of people appreciate this.
+1!!

diamondplus, I do ui development (css, js) so if you want a hand with any of the presentation then feel free to PM me.


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 03 Aug 2011, 20:26 
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Can a mod please change this chap's username to diamondgeezer as soon as.... :wink:

Great work, mate. :)


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 07 Aug 2011, 18:34 
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Right then...

Fingers crossed, I've almost got everything sorted. I've rewritten the code from scratch using C#, rewritten the webpage itself (using XML and a little jQuery along the way), and I've put all the back end data in an SQL Server database.

Everything is a lot more optimised than before, so I should be able to run CTC at more regular intervals. (I did a test run using dummy data for an entire season, with data at 30 minute intervals -- it took about 2 minutes to process!)

So. Everything works for now, but I get the feeling come Saturday afternoon, I'm going to be very VERY busy! (:

(Now I can concentrate on the little matter of picking an actual Fantasy Football team!)


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 07 Aug 2011, 18:35 
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Brilliant! thanks


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 07 Aug 2011, 19:14 
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That's great news diamondplus; thanks for your efforts on behalf of all of us who follow your Mystic Meg predictions :D


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 07 Aug 2011, 19:22 
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Excellent
Thanks for all the hard work.


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 07 Aug 2011, 19:23 
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Sounds fantastic - can't wait to see it! Thanks for your work D+! :D :D


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 07 Aug 2011, 21:09 
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Excellent news. Thanks for all your efforts.


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 07 Aug 2011, 22:42 
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I'd like to thank you for the effort you've put into this. I came across CTC for the frist time towards the end of last season and found it so useful. Glad to see it will be back for the new season.


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 10 Aug 2011, 11:48 
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Excellent - Cheers D+, CTC is one of the most important features for me so really appreciate you working on it


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 10 Aug 2011, 19:20 
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Right then minions...

I need a little blurb/FAQ/disclaimer that I can put on the front page of the CTC website. Kind of a quick guide to anybody new who stumbles across the site (possibly from another rival site (FFS!)). (:

Any ideas/ volunteers?

On a side note, I haven't had chance to set up the history list of the players who rose/drop yet. I can do that after the season starts.


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 11 Aug 2011, 15:00 
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Maybe ya'll can help me with my Java programming homework assignments haha


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 11 Aug 2011, 19:09 
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diamondplus wrote:
Right then minions...

I need a little blurb/FAQ/disclaimer that I can put on the front page of the CTC website. Kind of a quick guide to anybody new who stumbles across the site (possibly from another rival site (FFS!)). (:

Any ideas/ volunteers?

On a side note, I haven't had chance to set up the history list of the players who rose/drop yet. I can do that after the season starts.


I did an FAQ for FISO last year, which reds stuck on the first page. However, it's not, as you would describe as "a little blurb". However, feel free to pick anything out of this that you think is of interest or let me know what you like and I can rewrite focussing on specific areas.


FAQs
PRICE RISES

Q: Hi, I’m kind of new to this Crack the Code site. How does it work?
A: Crack the Code, known as CTC, is a site that predicts which players will either increase or decrease in value based on the Fantasy Premier League (FPL). It has been developed by Diamondplus who tries to work out the formula that the FPL uses in order to determine these increases & decreases.

Q: Interesting, so when do these price increases/decreases happen?
A: We’re not 100% sure but it is sometime between 00.30 and 03.30 every day.

Q: Does that mean a player can only increase/decrease once in day?
A: Exactly, they can’t increase/decrease more than £0.1m in one day. They can however increase/decrease every day in a week, but I’ll cover that shortly.

Q: And how often does CTC get updated?
A: This one we are sure of! It’s updated at 09:00, 13:00, 16:00, 18:00, 19:00, 20:00, 22:00 every day.

Q: Alright, so I’m looking at the CTC page for rises, what does everything mean?
A: Let’s start from the right hand side. You’ll see Target NTI. NTI stands for Net Transfers In. This number is calculated by taking all the teams that buy a player and subtracting the number of teams that sell a player. In order for a player to increase in value, they need to hit the NTI Target.

Q: So how do you know what the NTI target is meant to be?
A: Truthfully we don’t. It’s a bit of a moving target as FPL don’t let us know but as the season continues and we see more players increase in value, we get a better idea of what an NTI target is meant to be. This is due to being able to see what player’s NTIs were when they increased and therefore can speculate with more accuracy. The swing can be approx 3% either direction.

Q: And how do you know how many teams have actually bought/sold a player?
A: That information is actually found on the FPL site – just not everyone knows about it. If you click on the transfers tab on FPL, on the right you’ll see that it is defaulted at Score (Total). Click on that tab and go down and you’ll see transfers in, transfers out, transfers in (Gameweek), transfers out (Gameweek).

Q: Wow, never knew that
A: Glad I could teach you something....

Q: So going back to the CTC, if a player hits their NTI target they automatically increase in value?
A: Without confusing you right now, yes that is correct. There are some situations this doesn’t happen but I’ll cover them later as they are few and far between. In general though, yes they do increase in value.

Q: So looking at CTC, I can see a player’s NTI Target. I presume the NTI is what they are currently on and NTI (Today) shows me what increase/decrease they’ve had today?
A: Spot on

Q: So if a player’s NTI target is 32,500 and they have an NTI of 36,500 when the price increase occurs, do 4000 NTI roll over for their next target?
A: Unfortunately not, no. When a player hits their target and the price increase happens, their NTI total get reset back to zero. This includes all additional NTIs above the target. They just get lost into the ether.

Q: You mentioned above that a player can increase more than once in a week. Does the NTI target just get reset as well?
A: This is where it differs. If a player increases in value because they hit their NTI target, then in order for them to increase again in the same GameWeek (GW) the NTI target gets doubled. If they happen to hit that NTI target, in order for them to get a third increase, their NTI target gets trebled. You with me?

Q: Think so, but can you show me some numbers to make it clearer?
A: Of course. So if the NTI target is 32,500, and the player hits this in a GW, remember their NTI total gets reset back to zero. If they are to increase again in the same GW, their NTI target is now 65,000 (32,500 x 2). If they manage to hit that increase again in the same GW, then their NTI target becomes 97,500 (32,500 x 3) and so on. Remember, each time they hit the NTI target in the same GW, they NTI total is reset to zero.

Q: So how many times can a player actually increase?
A: In truth, there are enough teams that a player can increase every day of a GW but this is highly unlikely. Players have managed to rise 3 times in the same week.

Q: What happens to that player’s NTI target at the end of the GW?
A: The NTI target gets brought back down to the original 1st level, in this case 32,500, at the end of a GW.

Q: But let’s say a player has hit their first NTI target and now are trying to hit 65,000 for NTI target 2. Let’s say the NTI total is 45,000 at the end of the GW, do they also get lost into the ether?
A: No – this is where it’s a bit different. In fact, end of GW NTI totals, get rolled over. The only time NTI totals get lost is on the night of an increase.

Q: So if I’m getting this right, if 45,000 NTI total gets rolled on to the next GW and the NTI target is reset to 32,500 then the first night they’ll have an automatic increase?
A: That is correct

Q: But the additional 12,500 (45,000 minus 32,500) will be lost when that increase happens?
A: That’s perfect. Do you want my job??


PRICE DROPS

Q: No, not really but I do want to understand how player’s prices dropping works?
A: Whereas price increases had to do with NTIs, price decreases have got to do with NTOs (Net Transfers Out). Each player has an NTO Threshold and when they reach this, their price drops.

Q: Is the NTO Threshold the same for each player?
A: The formula is the same but the actual NTO number is different. The way you work out (formula) a player’s NTO Threshold, is to calculate what approximately 10% of their actual ownership number is. Hitting this number causes the price drop.

Q: Ownership number? How do I find out what that is?
A: Firstly, looking back at the FPL site, if you go to transfer page and look at each individual player, you’ll see the (i) icon to the left of their name. If you click on that, you’ll see a small window pop up. In that window you can see the % of “Teams Selected By”.

Q: That gives me a % but how do I know how many teams are in the league?
A: Now go back to “My Team” on the FPL site. On the right hand side you’ll see “Points/Rankings”. Under that you will see “Total Players”. To prevent confusion I’m going to refer to them as Total Teams. Therefore if there are 2 million total teams and you know a player is owned by 20% of teams, then you know that player is owned by.....

Q: 400,000 teams.
A: Correct. And if their NTO Threshold to drop in price is approx. 10% of that .....?

Q: Then they’ll need 40,000 players to sell them for their price to fall.
A: Spot on!

Q: Why do you say it’s approximately 10%?
A: Similar to price increases, we don’t know the exact formula that FPL uses to decide on price decreases but our research shows it’s approximately 10%.

Q: So how does it work if a player has already reduced in price once in a week? Can they fall again?
A: A couple of things to mention here. Firstly, again, exactly like price increases, when a player’s price drops, any additional NTOs get lost into the ether and their NTO Threshold gets reset back to zero. Secondly, once a player reduces once in a GW, in order for them to reduce again in the same GW their NTO Threshold is double the original one. For a third decrease in the same GW, the NTO Threshold is 3 times the original and this goes on and on. However, once the GW is over, any outstanding NTOs are carried over to the next GW and the NTO Threshold is reset using the same formula above.

Q: So are there any times when the NTO Threshold can be different from how you’ve explained it above?
A: Yes – sorry, I know this gets a bit complicated but work with me on this.
1) When a player’s value is higher than their season-beginning value, then in order for them to have a price decrease, instead of an NTO Threshold, they just need to hit the negative NTI Threshold instead, if this is smaller than the 10% of manager’s that own him.

Q: You say what???
A: Take Drogba, let’s say his last price increase was an NTI Target of 31,000. His value is now above his season-beginning value. He now loses form and people want to sell him. His “Teams Selected By” number is 25%. On a game with 2 million teams he is owned by 500,000 teams. 10% of that would be 50,000 and that should be his NTO Threshold to drop. BUT, because he has risen already in the game, his NTO is now the 31,000 (original NTI target) as this is lower than the 10%.

Q: And any other differences on NTO Threshold?
A: 2) Any player who has less than 1% “Teams Selected By” work on a different scale. Unfortunately we’re not sure how this is calculated. Also worth noting that there is a slight margin in error for all NTO Thresholds as the “Teams Selected By” on the FPL site is rounded to the nearest decimal, therefore the NTO Threshold will not be completely accurate.

Q: So that’s it? I’m ready to use CTC?
A: Actually no. There are a couple of other things you should be aware of such as Flagging & Protection of players.

FLAGGING & PROTECTION OF PLAYERS

Q: Flagging & Protection of Players? Explain away….
A: When a player is either injured, doubtful, suspended or ineligible then the (i) next to their name on FPL will be flagged red or yellow.

Q: Does this mean the player is protected from any price drop?
A: NO – absolutely not and this is a major mistake many people make. Anyone who is flagged will still be able to increase and decrease in value. The increase NTI target stays the same. However the NTO Threshold for a price drop is approximately 2.5 times greater than the usual Threshold for price drops.

Q: Why is that?
A: The general thinking here is that when a player is injured or suspended, naturally a lot of people will want to sell that player. In order to ensure their price doesn’t fall dramatically, the Threshold is increased.

Q: So if a player’s NTO Threshold was 40,000, it’s now going to be 2.5 times greater than that when they are flagged – so 100,000?
A: Correct

Q: But their NTI target for increase doesn’t change?
A: Again correct

Q: Is it likely a player will increase in value or even people buying him in if they are flagged?
A: It could be. Let’s say a player got flagged red as they were being suspended for 1 game for receiving 5 yellow cards. This might not put people off from keeping this player, if they are in the knowledge that he will be back next game. Plus, if this player is already on a rise, there is no reason that more teams won’t buy him and bench him for one week.

Q: So what is protection all about?
A: If a player is red or yellow flagged for 2 days or more, once their (i) icon goes back to grey, they are protected for 8 days.

Q: What does that effectively mean?
A: It means that for the next 8 days their price is frozen. It can neither rise nor fall. Once the 8 days is up, the player’s NTI or NTO is reset to zero and the normal rules of increases/decreases kick in from there.

Q: So their price is only frozen once the flag is lifted, not whilst they are flagged?
A: Correct

Q: But what happens if they are only red/yellow flagged for 1 day?
A: Then there is no protection period – just their NTI/NTO target is reset to zero and the normal rules of increases/decreases start from there.

Q: So anything else I should know?
A: It’s important to remember that CTC will never be 100% accurate. It takes a lot of dedication from people who, in their spare time, are analysing the information we can gather from price rises and decreases and trying to accurately predict the formulas. Ultimately though, FPL will never reveal their formulas and therefore the CTC team will always be half a step behind. It’s bit like a game of cat and mouse. Sometimes we manage to paw the mouse and sometimes it manages to go left, when we’re still chasing right.

So if you notice something is wrong (or went wrong) try and help us understand why a player increased/decreased when we were not expecting him to or why a player DIDN’T increase/decrease when we were expecting it!

Q: Thanks for all the help
A: No problem at all

Q: So now I’m ready to use CTC?
A: You were always ready to use CTC, you just never knew it…….


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 11 Aug 2011, 23:59 
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Grumpy Old Man

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FS Record: 573rd in FPL 09/10. 176pts in DGW22 of 09/10.
Excellent work all involved :)
Very much appreciated as always.


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 12 Aug 2011, 01:17 
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Dumbledore
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FS Record: FPL 28th 06/07; CYKI 10th 08/09; TFFO 3rd 09/10; ISO champ 06/07 & 09/10; TFF £25s 2nd and 2-foot winner 2010/11
Just a couple of comments on your FAQ Stu:
stuboy wrote:
Q: Interesting, so when do these price increases/decreases happen?
A: We’re not 100% sure but it is sometime between 00.30 and 03.30 every day.

I can narrow this down now - the times were always 02:00-02:15 GMT or 01:00-01:15 BST last season.

stuboy wrote:
Q: And any other differences on NTO Threshold?
A: 2) Any player who has less than 1% “Teams Selected By” work on a different scale. Unfortunately we’re not sure how this is calculated. Also worth noting that there is a slight margin in error for all NTO Thresholds as the “Teams Selected By” on the FPL site is rounded to the nearest decimal, therefore the NTO Threshold will not be completely accurate.

The "different scale" is not true - they work on the same scale (i.e. 10% of ownership rule). The thing was that due to the fact a player which FPL said was owned by 1% could potentially be either 0.51% or 1.49%, there was a 3x factor of uncertainty so these players weren't detailed in CTC. (There was an uncertainty factor for everyone but it's far more for 1% or 0% owned players. For example the difference between 1.51% and 2.49% is only 1.6x, and it decreases further as ownership gets bigger.)

It remains to be seen this season (with actual numbers of 'teams owned by' publicly available, instead of just percentages rounded to an integer) whether CTC can get more accurate figures on these and subsequently include them.


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 12 Aug 2011, 15:37 
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Grumpy Old Man
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Location: Ireland
Great work guys. :D


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 12 Aug 2011, 16:00 
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Grumpy Old Man

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And I will just repeat myself in saying that I agree on all the great work provided. Two thumbs up, three if I had them


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 Post subject: Re: CRACK THE CODE 2011/12 (The FISO Guide to FPL Price Chan
PostPosted: 13 Aug 2011, 08:41 
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Red & Blue Braces
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Posts: 415
First of all, thank you to all who put a lot of time and effort into this. Massive help and hugely appreciated.

I have a question regarding starting player ownership. If a player like NZogbia is owned by 33% of players, is this reflected in initial weeks or not. Should he increase steadily to account for ownership, or is this irrelevant. If a player was owned by 99% of people would his price rise each week for the next month (assuming no further selling) or will his price only go down as he sold off and there are few people left to buy?

Hope that question makes sense.

Cheers


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