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One for the Statisticians - Batters Feast of Famine

L

lug

Cricket Spectator
Hi - first post here - for a while anyway...

Is this the best place / forum to ask a (very) statistical question? I'm trying to derive a robust means of measuring a batter's decline based on their potential for less consistency after a given event in their career? I don't want to join ACS (Association of Cricket Statisticians) as I'm not a professional Cricket statistician so is there a better free forum or can I ask the question here?

Thanks
 
chris.hinton

chris.hinton

International Captain
lug said:
Hi - first post here - for a while anyway...

Is this the best place / forum to ask a (very) statistical question? I'm trying to derive a robust means of measuring a batter's decline based on their potential for less consistency after a given event in their career? I don't want to join ACS (Association of Cricket Statisticians) as I'm not a professional Cricket statistician so is there a better free forum or can I ask the question here?

Thanks
Click to expand...
Just ask here. I'm sure we will do our very best to answer the question
 
L

lug

Cricket Spectator
I can think of several batters over the years who played on past their best. In their latter years, it seemed to me that they made more very low scores and "bumped up" their averages (and therefore perhaps unjustifiably kept their places) by scoring massively against weaker opponents or on very flat pitches. The question is... How to demonstrate this.

Two problems:
1) Identify the point at which their consistency ended.
2) calculate a robust measure that will show this.


For the measure, I was thinking of the number of inns pre and post watershed that were +- 1sd of their career ave. I was thinking of trying this on those batters with (arbitrarily a 10 year test career and 6000 runs) but don't know how / where to get an inns by inns list for that many players. You can do it player by player on statsguru but I need a dataset of probably 100 batters. Cricsheet can supply it but only for the last 20 years or so but I want to go back further.

As for identifying the watershed, this presumably means subdividing the population into at least 2 samples and calculating the metric above but need to know which formula to use to select the subsamples. One obvious constraint being each subsample must contain consecutive observations i.e. inns.

A few thoughts there! Discuss! Is it statistically sound? Where to get data? Software?

Cheers
 
Coronis

Coronis

Hall of Fame Member
lug said:
I can think of several batters over the years who played on past their best. In their latter years, it seemed to me that they made more very low scores and "bumped up" their averages (and therefore perhaps unjustifiably kept their places) by scoring massively against weaker opponents or on very flat pitches. The question is... How to demonstrate this.

Two problems:
1) Identify the point at which their consistency ended.
2) calculate a robust measure that will show this.


For the measure, I was thinking of the number of inns pre and post watershed that were +- 1sd of their career ave. I was thinking of trying this on those batters with (arbitrarily a 10 year test career and 6000 runs) but don't know how / where to get an inns by inns list for that many players. You can do it player by player on statsguru but I need a dataset of probably 100 batters. Cricsheet can supply it but only for the last 20 years or so but I want to go back further.

As for identifying the watershed, this presumably means subdividing the population into at least 2 samples and calculating the metric above but need to know which formula to use to select the subsamples. One obvious constraint being each subsample must contain consecutive observations i.e. inns.

A few thoughts there! Discuss! Is it statistically sound? Where to get data? Software?

Cheers
Click to expand...
fwiw, 75 batsmen have made 6000 runs, and only one played less than 10 years (Mike Hussey) About half of those played purely in the last 20 years.
 
L

lug

Cricket Spectator
Does anyone know if there's a way to produce an innings by innings list for a given subset of batters? I appreciate this might be a big dataset.
 
Thala_0710

Thala_0710

International Regular
lug said:
Does anyone know if there's a way to produce an innings by innings list for a given subset of batters? I appreciate this might be a big dataset.
Click to expand...
You can go to statsguru and there's an option to filter the players u want, and an innings by innings option as well
 
L

lug

Cricket Spectator
I've tried Statsgugu but I can't find a way of doing a list for multiple players - only one player at a time. Do you know a way?
 
L

lug

Cricket Spectator
Thanks but that's a list of all innings played in England in the last 5 years and runs to 29 pages. What I want is every innings played by all players with over 5,000 test runs in the last 50 years. Is there a way to do this in one go?
 
Thala_0710

Thala_0710

International Regular
lug said:
Thanks but that's a list of all innings played in England in the last 5 years and runs to 29 pages. What I want is every innings played by all players with over 5,000 test runs in the last 50 years. Is there a way to do this in one go?
Click to expand...
Yup, but this will require certain amount of coding
 
Last edited:
Thala_0710

Thala_0710

International Regular
Thala_0710 said:
Yup, but this will require certain amount of coding
Click to expand...

Go to this URL, there's a white arrow at the absolute right in a blue box, click on it and select batting innings for player.
Manually copy and pasting for 89 players will be tough, but chatgpt or any other ai should be able to right the required code quite easily.
 
L

lug

Cricket Spectator
OK - the pasting for 89 players is what I was trying to avoid.

Out of interest, is there a database anywhere I can access to do this or is everything via the front end?
 
capt_Luffy

capt_Luffy

Hall of Fame Member
lug said:
OK - the pasting for 89 players is what I was trying to avoid.

Out of interest, is there a database anywhere I can access to do this or is everything via the front end?
Click to expand...
I think the statsguru query Thala provided is a pretty clear cut database of what you are looking for. Don't think a simpler version is possible really. A little bit of coding and getting the output in a CSV should be simple imo.
 
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