77.72.146.250 at 13:23, 7 March 2013

2013-03-07T13:23:53Z

77.72.146.250: Created page with " def leastsquares(data): n=len(data)+0.0 avx=sum([d[0] for d in data])/n avy=sum([d[1] for d in data])/n do=[(d[0]-avx, d[1]-avy) for d in data] slope=sum([…"

2013-03-07T13:23:34Z

Created page with " def leastsquares(data): n=len(data)+0.0 avx=sum([d[0] for d in data])/n avy=sum([d[1] for d in data])/n do=[(d[0]-avx, d[1]-avy) for d in data] slope=sum([…"

New page

def leastsquares(data):
n=len(data)+0.0
avx=sum([d[0] for d in data])/n
avy=sum([d[1] for d in data])/n
do=[(d[0]-avx, d[1]-avy) for d in data]
slope=sum([d[0]*d[1] for d in do]) / sum([d[0]*d[0] for d in do])
offset=avy-avx*slope
return offset, slope
#print "avx=", avx
#print "avy=", avy
#print "slope=", slope
#print "offset=", offset

← Older revision		Revision as of 13:23, 7 March 2013
Line 1:		Line 1:
		+	Leastsquares implementation in python:
−
	def leastsquares(data):		def leastsquares(data):
	n=len(data)+0.0		n=len(data)+0.0

Least squares - Revision history

77.72.146.250 at 13:23, 7 March 2013

77.72.146.250: Created page with " def leastsquares(data): n=len(data)+0.0 avx=sum([d[0] for d in data])/n avy=sum([d[1] for d in data])/n do=[(d[0]-avx, d[1]-avy) for d in data] slope=sum([…"