python Programming Glossary: dimensional

http://stackoverflow.com/questions/1713335/peak-finding-algorithm-for-python-scipy

be ignored. These are just examples not my actual data 1 dimensional peaks 2 dimensional peaks The peak finding algorithm would find.. are just examples not my actual data 1 dimensional peaks 2 dimensional peaks The peak finding algorithm would find the location of..

Principal component analysis in Python

http://stackoverflow.com/questions/1730600/principal-component-analysis-in-python

I'd like to use principal component analysis PCA for dimensionality reduction. Does numpy or scipy already have it or do I have.. decomposition SVD because my input data are quite high dimensional ~460 dimensions so I think SVD will be slower than computing..

Python List vs. Array - when to use?

http://stackoverflow.com/questions/176011/python-list-vs-array-when-to-use

can automatically vectorize operations on complex multi dimensional arrays. To make a long story short array.array is useful when..

Numpy meshgrid in 3D

http://stackoverflow.com/questions/1827489/numpy-meshgrid-in-3d

for `y`. See Also index_tricks.mgrid Construct a multi dimensional meshgrid using indexing notation. index_tricks.ogrid Construct.. notation. index_tricks.ogrid Construct an open multi dimensional meshgrid using indexing notation. Examples X Y np.meshgrid..

How to initialize a two-dimensional array in Python?

http://stackoverflow.com/questions/2397141/how-to-initialize-a-two-dimensional-array-in-python

to initialize a two dimensional array in Python I'm beginning python and I'm trying to use.. Python I'm beginning python and I'm trying to use a two dimensional list that I initially fill up with the same variable in every.. an easier shorter more elegant way to do this python multidimensional array share improve this question A pattern that often came..

Merging/adding lists in Python

http://stackoverflow.com/questions/263457/merging-adding-lists-in-python

doing this but I can't think of one How can I merge a two dimensional list into a one dimensional list Sort of like zip map but with.. of one How can I merge a two dimensional list into a one dimensional list Sort of like zip map but with more than two iterators...

Pretty-printing of numpy.array

http://stackoverflow.com/questions/2891790/pretty-printing-of-numpy-array

format which is rather hard to read even for low dimensional arrays. However numpy.array apparently has to be printed as..

How can you determine a point is between two other points on a line segment?

http://stackoverflow.com/questions/328107/how-can-you-determine-a-point-is-between-two-other-points-on-a-line-segment

other points on a line segment Let's say you have a two dimensional plane with 2 points called a and b on it represented by an x..

How can I improve my paw detection?

http://stackoverflow.com/questions/4087919/how-can-i-improve-my-paw-detection

Because SciPy's ndimage functions are meant to work with n dimensional arrays we don't have to modify the original paw finding function..

Efficient Numpy 2D array construction from 1D array

http://stackoverflow.com/questions/4923617/efficient-numpy-2d-array-construction-from-1d-array

is to directly manipulate the strides of the array For one dimensional arrays import numpy as np def rolling a window shape a.size.. this to a rolling window along the last axis for an N dimensional array we get Erik Rigtorp's rolling window function import numpy.. one value along a given axis. So in the case of a 1 dimensional array of 64 bit floats the length of each item is 8 bytes and..

Using strides for an efficient moving average filter

http://stackoverflow.com/questions/4936620/using-strides-for-an-efficient-moving-average-filter

things from the earlier question I figured I'd post the N dimensional equivalent. You're not going to be able to significantly beat.. though Moreover if you're trying to get a multidimensional moving window you risk having memory usage blow up whenever.. axes or operated only along selected axes of an N dimensional array i.e. filtsize 0 3 0 3 on a 4 dimensional array would give..

How to define Two-dimensional array in python

http://stackoverflow.com/questions/6667201/how-to-define-two-dimensional-array-in-python

to define Two dimensional array in python I want to define a Two dimensional array without.. Two dimensional array in python I want to define a Two dimensional array without an initalized length like this Matrix but it does..