Wanted: statistician to solve a curve-fitting problem

Wanted: statistician to solve a curve-fitting problem

12 posts
4 March 2013
skymouse
Photographer
skymouse
This is a long shot ...

Can any of you guys or gals solve a curve-filtting problem for me?

Without going into numbers here, I have twelve data points. Also, I know the mean of data points 13 to 24, and I kow the mean of data points 25 to 36. The only constraints are that the curve is monotonically descreasing, is always greater than or equal to zero, and is hypothesised to be asymptotic to some (unknown) non-zero value.

I'd like a reasonable fit, doesn't have to be amazingly close.
Posted 4 March 2013
Edited by skymouse 4 March 2013
gerryquiff
Photographer
gerryquiff
Get into your local Grace Brothers department store, ask for Mrs Slocombe (Betty) she'll check your curves and sell you a girdle and bra to fit. cheeky
Posted 4 March 2013
Does this qualify as the most difficult question ever asked on Purestorm ?
Posted 4 March 2013
frankpht
Photographer
frankpht
The answer and you're not going to like it is 42.

Posted 4 March 2013
mph
Photographer
mph
Truedefinition

Does this qualify as the most difficult question ever asked on Purestorm ?


It would only be difficult if you understood it!

By God though - we are all impressed beyond words!  smiley

Posted 4 March 2013
tomwhipp
Photographer
tomwhipp
post the data points

Posted 4 March 2013
Edited by tomwhipp 4 March 2013
skymouse
Photographer
skymouse
tomwhipp

post the data points


PM sent
Posted 4 March 2013
PaulManuell
Photographer
PaulManuell
skymouse
Can any of you guys or gals solve a curve-fitting problem for me?
Yes, exercise more and/or eat less. Simples
Posted 4 March 2013
MetropolitanFox
Photographer
Metropolitan..
Stick it in excel and do a curve fit...

Tim

Posted 5 March 2013
MetropolitanFox
Photographer
Metropolitan..
Thinking about it, your mean values for points 13 to 24 and 25 to 36 are only any use if we know the sampling intervals

Tim

Posted 5 March 2013
Spooky
Photographer
Spooky
I have a couple of maths lecturer mates who might be able to help. To me, your post sounds like a foreign language but to them it might be a lovely evening of applied maths in action!

Can you provide me with he problem in full, or PM me an email address that I can forward to them

Cheers

Simon

Posted 5 March 2013
skymouse
Photographer
skymouse
Thanks for your help and suggestions, everyone, including those who generously contacted me with offers to help out. I have a good solution that was provided by tomwhipp which gives me what I need.

Posted 11 March 2013
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