I want to fit non-negative parameters (xs in the code) to a function fp, given by where v and L are fixed, given parameters. Computing fp can be done relatively quickly by vectorizing it and using...

I have these values: T_values = (222, 284, 308.5, 333, 358, 411, 477, 518, 880, 1080, 1259) (x values) C/(3Nk)_values = (0.1282, 0.2308, 0.2650, 0.3120 , 0.3547, 0.4530, 0.5556, 0.6154, 0.8932...

I intend to fit a 2D Gaussian function to images showing a laser beam to get its parameters like FWHM and position. So far I tried to understand how to define a 2D Gaussian function in Python and h...

I have the following data: >>> x array([ 3.08, 3.1 , 3.12, 3.14, 3.16, 3.18, 3.2 , 3.22, 3.24, 3.26, 3.28, 3.3 , 3.32, 3.34, 3.36, 3.38, 3.4 , 3.42, 3.44, 3.46, 3.48, 3.5 , 3.52, 3.54, 3...

I need to do data fitting to find the distribution of a given data. I need to find the pdf function of the distribution. I can use data fitting functions in matlab and python. It looks like a t...

I have a dataset from sklearn and I plotted the distribution of the load_diabetes.target data (i.e. the values of the regression that the load_diabetes.data are used to predict). I used this beca...

I am using scipy.optimize's least_squares method in order to perform a constrained non-linear least squares optimization. I was wondering how I would go about getting the covariance matrix of the f...

I am currently trying to find a way to calculate a power-law fit for a cut-off distribution with MLE. The distribution looks as follows: As you can see, I was able to fit the whole distribution ...

Say I have two lists of data as follows: x = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] y = [1, 2, 3, 4, 5, 6, 8, 10, 12, 14] That is, it's pretty clear that merely fitting a line to this data doesn't work...

Do the names/order of the columns of my X_test dataframe have to be the same as the X_train I use for fitting? Below is an example I am training my model with: model.fit(X_train,y) where X_train=d...

I have a noisy signal and a model function, for example: x=linspace(0,20); w=[2 6 -4 5]; y=w(1)*besselj(0,x)+w(2)*besselj(1,x)+w(3)*besselj(2,x)+w(4)*besselj(3,x); y(randi(length(y),[1 10]))=10*ran...

I have a 2D points (x,y), and I want to fit the ellipse using this post fit a ellipse in Python given a set of points xi=(xi,yi) But my result is axes = [ 0.93209407 nan] since in function ellip...

I am trying to fit known well-defined shapes (eg boxes, cylinders; with configurable positions, rotations and dimensions) to a set of points with normals generated from sampling a 3D mesh. My curre...

I have a set of data points, which appear sort of like a line with a curve near the beginning. See the image below, which shows the points with a line of best fit (fit to the whole data set). In...

I have sets of x,y,z points in 3D space and another variable called charge which represents the amount of charge that was deposited in a specific x,y,z coordinate. I would like to do a weighted (we...

So, I looked up information about the weights parameter in the polyfit (numpy.polynomial.polynomial.polyfit) function in Python and it seems like it has something to do with the error associated wi...

I would like to fit ellipsometric data to complex model using LMFit. Two measured parameters, psi and delta, are variables in a complex function rho. I could try with separating problem to real an...

I have some data which I have fitted a normal distribution to using the scipy.stats.normal objects fit function like so: import numpy as np import matplotlib.pyplot as plt from scipy.stats impo...

My teacher in the signal analysis course has given me some Matlab code that I have to execute in order to complete a home assignment. I have always been using GNU Octave without troubles, but this ...

Simple question - the range drawn on a plot can be changed with the set xrange [x_min:x_max] command. Does this command also limit the range used when fitting a function using the data fitting too...

I'm trying to fit some data to a power law using python. The problem is that some of my points are upper limits, which I don't know how to include in the fitting routine. In the data, I have put t...

I am using Keras with a Tensorflow backend in Python. To be more precise tensorflow 1.2.1 and its build-in contrib.keras lib. I want to use the fit_generator method of a Sequential model object, b...

I have a set of data (displacement vs time) which I have fitted to a couple of equations using the optimize.leastsq method. I am now looking to get error values on the fitted parameters. Looking th...

I am having some trouble translating my MATLAB code into Python via Scipy & Numpy. I am stuck on how to find optimal parameter values (k0 and k1) for my system of ODEs to fit to my ten observed...

I've been trying to fit an exponential to some data for a while using scipy.optimize.curve_fit but i'm having real difficulty. I really can't see any reason why this wouldn't work but it just produ...