Hi all,
I am wondering if I can use scatter in connection with
legend
(attached test for details). I am using the latest svn
version.
Any pointer would be appreciated.
Cheers,
Nils
from scipy.optimize import *
from numpy import array, sum, linspace
from pylab import plot, scatter, show, savefig, xlabel, ylabel, legend
y = array((31,14,2.9,2.0))
x = array((0,6,12,18))
def mycost(c):
# y_model = c[0] + c[1]**x
y_model = c[0]*(c[1]**x)
error_vect = y - y_model
return sum(error_vect**2)
c_initial_guess = [10, 0.5]
c_final = fmin(mycost, c_initial_guess)
xr = linspace(0,18)
#yr = c_final[0] + c_final[1] ** xr
yr = c_final[0] *(c_final[1] ** xr)
print "***************************************************************"
print c_final
print "***************************************************************"
print xr
print "***************************************************************"
print yr
print "***************************************************************"
scatter(x,y) # Doesn't work wrt legend
#plot(x,y,'ro') # Works for me wrt legend
plot(xr,yr)
legend(('Messdaten','Ausgleichskurve'),shadow=True)
show()
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