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Author Maths Help (Least Squares Method)
Bart
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Registered: 19th Aug 02
Location: Midsomer Norton, Bristol Avon
User status: Offline
22nd Jan 06 at 13:55   View User's Profile U2U Member Reply With Quote
Im having trouble with a graph... I have the below data (Along the top should read Load. Increase, Decrease) and i should construct a graph using the 'least squares method'.
Is anyone able to help me out?
Haimsey
Premium Member

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Registered: 8th May 05
Location: Nottingham Drives: Corsa B
User status: Offline
22nd Jan 06 at 13:58   View Garage View User's Profile U2U Member Reply With Quote
cant help , but what level is this at?

Marcy Marc

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Kerry
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Registered: 5th Oct 01
Location: Norwich
User status: Offline
22nd Jan 06 at 13:58   View User's Profile U2U Member Reply With Quote
isnt least squares method the way you find the best line or curve through a graph that has loads of data on it?
Bart
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Registered: 19th Aug 02
Location: Midsomer Norton, Bristol Avon
User status: Offline
22nd Jan 06 at 14:14   View User's Profile U2U Member Reply With Quote
yes, witha forumla i think, which i think is:

(Sum of) y + a (Sum of) x + n . b

(therefore):
(Sum of) x . y = a (Sum of) x^2 + B (sum of) x
Kerry
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Registered: 5th Oct 01
Location: Norwich
User status: Offline
22nd Jan 06 at 14:28   View User's Profile U2U Member Reply With Quote
try using this

http://www.physics.csbsju.edu/stats/QF_NROW_form.html

 
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