Is it possible to perform multi-variate regression in Python using NumPy?
The documentation here suggests that it is, but I cannot find any more details on the topic.
Yes, download this ( http://www.scipy.org/Cookbook/OLS?action=AttachFile&do=get&target=ols.0.2.py ) from http://www.scipy.org/Cookbook/OLS
Or you can install R and a python-R link. R can do anything.
The webpage that you linked to mentions numpy.linalg.lstsq to find the vector x
which minimizes |b - Ax|. Here is a little example of how it can be used:
First we setup some "random" data:
import numpy as np
c1,c2 = 5.0,2.0
x = np.arange(1,11)/10.0
y = c1*np.exp(-x)+c2*x
b = y + 0.01*max(y)*np.random.randn(len(y))
A = np.column_stack((np.exp(-x),x))
c,resid,rank,sigma = np.linalg.lstsq(A,b)
print(c)
# [ 4.96579654 2.03913202]
You might want to look into the scipy.optimize.leastsq function. It s rather complicated but I seem to remember that being the thing I would look to when I wanted to do a multivariate regression. (It s been a while so I could be misremembering)
Is there a way to force Django models to pass a field to a MySQL function every time the model data is read or loaded? To clarify what I mean in SQL, I want the Django model to produce something like ...
I am looking for an enterprise tasks scheduler for python, like quartz is for Java. Requirements: Persistent: if the process restarts or the machine restarts, then all the jobs must stay there and ...
Given the following list that contains some duplicate and some unique dictionaries, what is the best method to remove unique dictionaries first, then reduce the duplicate dictionaries to single ...
Simple enough question: I m using python random module to generate random integers. I want to know what is the suggested value to use with the random.seed() function? Currently I am letting this ...
I m using PyDev under Eclipse to write some Jython code. I ve got numerous instances where I need to do something like this: import com.work.project.component.client.Interface.ISubInterface as ...
Python s paster serve app.ini is taking longer than I would like to be ready for the first request. I know how to profile requests with middleware, but how do I profile the initialization time? I ...
Our business currently has an online store and recently we ve been offering free specials to our customers. Right now, we simply display the special and give the buyer a notice stating we will add the ...
I m trying to convert a Python dictionary into a Python list, in order to perform some calculations. #My dictionary dict = {} dict[ Capital ]="London" dict[ Food ]="Fish&Chips" dict[ 2012 ]="...