scipy
Numpy, all pairwise correlations of a 3d array
I have an array of shape (l,m,n). I\'m trying to calculate a distance matrix of shape (l,m,n) where entry (i,j,k) is the coefficient between vectors (i,j,:) and (i,:,k).I haven\'t found anything in nu[详细]
2023-04-11 06:13 分类:问答python built-in function to do matrix reduction
Does python have a built-in function that converts a matrix into row echelon form (also known a开发者_开发问答s upper triangular)?If you can use sympy, Matrix.rref() can do it:[详细]
2023-04-11 03:52 分类:问答Encountered invalid value when I use pearsonr
Maybe I made a mistake. If so, I am sorry to ask this. I want to calculate Pearson\'s correlation coefficent by using scipy\'s pearsonr function.[详细]
2023-04-10 22:47 分类:问答numpy: calculate average in a certain area
is there a way for calculating the average within a certain开发者_高级运维 bbox. The difficulty is that the bbox may also contain float values, so that the bounds of the box values must be weighted. T[详细]
2023-04-10 21:01 分类:问答How to get flat clustering corresponding to color clusters in the dendrogram created by scipy
Using the code posted here, I created a nice hierarchical clustering: Let\'s say the the dendrogram on the left was created by doing something like[详细]
2023-04-10 17:27 分类:问答slicing sparse (scipy) matrix
I would appreciate any help, to understand following behavior when slicing a lil_matrix (A) from the scipy.sparse package.[详细]
2023-04-10 06:02 分类:问答Python Nelder Mead with Kelley restarts
I am trying to use the fmin function in scipy.optimize, which implements str开发者_如何学JAVAaightforward Nelder Mead minimization. Is there a version which exists which includes C.T. Kelley\'s restar[详细]
2023-04-09 12:35 分类:问答SciPy LeastSq Goodness of Fit Estimator
I have a data surface that I\'m fitting using SciPy\'s leastsq function. I would like to have some estimate of the quality of the fit after leastsq returns. I\'d expected that this would be included[详细]
2023-04-08 21:31 分类:问答invalid types ‘float[int]’ for array subscript error and passing variables to scipy.weave.inline
I\'ve been playing with Scipy\'s inline tool (via weave) for fun, but I\'m running into some trouble. My C is rusty and I have a feeling that I\'m missing something simple.[详细]
2023-04-08 21:16 分类:问答Dynamically expanding a scipy array
Is there a way to dynamically expand an scipy array from scipy import sci time = sci.zeros((n,1), \'double\')[详细]
2023-04-08 19:46 分类:问答