least-squares
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Fitting an ellipsoid to 3D data points
I have a large set of 3D data points to which I want to fit to an ellipsoid. My maths is pretty poor, so I\'m having trouble implementing the least squares method without any math libraries.[详细]
2023-04-01 16:21 分类:问答 Least square method doesn't work as expected, or does it? [closed]
Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow.[详细]
2023-03-26 14:08 分类:问答Non-linear Least Squares Optimization Library for C [closed]
Closed. This question is seeking recommendations for books, tools, software libraries, and more. It does not meet Stack Overflow guidelines guidelines. It is not currently accepting answers.[详细]
2023-03-14 03:50 分类:问答How to compute minimal but fast linear regressions on each column of a response matrix?
I want to compute ordinary least square (OLS) estimates in R without using \"lm\", and this for several reasons. First, \"lm\" also computes lots of stuff I don\'t need (such as the fitted values) con[详细]
2023-03-10 03:30 分类:问答Ruby Library for doing Linear or NonLinear Least Squares Approximation?
Is there a Ruby library that a开发者_Go百科llows me to do either linear or non-linear least squares approximation of a set of data.[详细]
2023-03-08 00:17 分类:问答numpy: code to update least squares with more observations
I am looking for a numpy-based implementation of ordinary least squares that would allow the fit to be updated with more observations. Something along the lines of Applied Statistics alg开发者_运维问答[详细]
2023-03-04 17:58 分类:问答User defined Jacobian in MATLAB's lsqnonlin
When using MATLAB\'s lsqnonlin function, I am trying to give a user-defined Jacobian matrix, as described in the documentation.[详细]
2023-03-04 03:04 分类:问答pseudo inverse of sparse matrix in python
I am working with data from neuroimaging and because of the large amount of data, I would like to use sparse matrices for my code (scipy.sparse.lil_matrix or csr_matrix).[详细]
2023-03-02 12:20 分类:问答Run a function in between each iteration of fsolve in MATLAB
I am using fsolve to minimise an energy function in MATLAB. The algorithm I am using fits a grid to noisy lattice data, with costs for the distances of the grid from each data point.[详细]
2023-02-22 18:33 分类:问答Chi square numpy.polyfit (numpy)
Could someone explain how to get Chi^2/doF usin开发者_运维技巧g numpy.polyfit?Assume you have some data points[详细]
2023-02-20 19:11 分类:问答