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python Programming Glossary: np.array

OpenCV 2.4.1 - computing SURF descriptors in Python

http://stackoverflow.com/questions/10984313/opencv-2-4-1-computing-surf-descriptors-in-python

False # Setting up samples and responses for kNN samples np.array descritors responses np.arange len kp dtype np.float32 # kNN.. useProvidedKeypoints False for h des in enumerate desc des np.array des np.float32 .reshape 1 128 retval results neigh_resp dists..

2D and 3D Scatter Histograms from arrays in Python

http://stackoverflow.com/questions/14002480/2d-and-3d-scatter-histograms-from-arrays-in-python

v in np.ndenumerate ax 0 points.append xs i ys j v points np.array points fig pyplot.figure sub pyplot.scatter points 0 points.. np.ndenumerate smart points.append xs i ys j zs k v points np.array points fig pyplot.figure sub fig.add_subplot 111 projection..

find and delete from more-dimensional numpy array

http://stackoverflow.com/questions/16839303/find-and-delete-from-more-dimensional-numpy-array

numpy array I have two numpy arrays p_a_colors np.array 0 0 0 0 2 0 119 103 82 122 122 122 122 122 122 3 2 4 p_rem.. 0 2 0 119 103 82 122 122 122 122 122 122 3 2 4 p_rem np.array 119 103 82 122 122 122 I want to delete all the columns from.. from p_a_colors that are in p_rem so I get p_r_colors np.array 0 0 0 0 2 0 3 2 4 I think something should work like p_r_colors..

Find unique rows in numpy.array

http://stackoverflow.com/questions/16970982/find-unique-rows-in-numpy-array

a void type that joins the whole row into a single item a np.array 1 1 1 0 0 0 0 1 1 1 0 0 0 1 1 1 0 0 1 1 1 0 0 0 1 1 1 1..

What is the equivalent of MATLAB's repmat in NumPy

http://stackoverflow.com/questions/1721802/what-is-the-equivalent-of-matlabs-repmat-in-numpy

the same . Matlab repmat 1 1 1 1 1 ans 1 1 Python In 46 a np.array 1 1 In 47 np.tile a 1 1 1 Out 47 array 1 1 share improve this..

Python frequency detection

http://stackoverflow.com/questions/2648151/python-frequency-detection

# unpack the data and times by the hamming window indata np.array wave.struct.unpack dh len data swidth data window # Take the..

Pretty-printing of numpy.array

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

the use of scientific notation for small numbers y np.array 1.5e 10 1.5 1500 print y # 1.500e 10 1.500e 00 1.500e 03 np.set_printoptions.. original arrayprint.FloatFormat.__call__ origcall x np.array 0.078 0.480 0.413 0.830 0.776 0.102 0.513 0.462 0.335 0.712..

Inverse Distance Weighted (IDW) Interpolation with Python

http://stackoverflow.com/questions/3104781/inverse-distance-weighted-idw-interpolation-with-python

of each query point q np.asarray q qdim q.ndim if qdim 1 q np.array q if self.wsum is None self.wsum np.zeros nnear self.distances..

How can I improve my paw detection?

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

.strip .split if line break data.append line return time np.array data dtype np.float if __name__ '__main__' animate 'Overlapping..

Multivariate spline interpolation in python/scipy?

http://stackoverflow.com/questions/6238250/multivariate-spline-interpolation-in-python-scipy

writing these as row column pairs for clarity... coords np.array 1.2 3.5 6.7 2.5 7.9 3.5 3.5 3.5 # However map_coordinates expects.. np.arange 3 5 9 .reshape 3 5 9 .astype np.float coords np.array 1.2 3.5 7.8 0.5 0.5 6.8 zi ndimage.map_coordinates data coords.T..

How to get indices of N maximum values in a numpy array?

http://stackoverflow.com/questions/6910641/how-to-get-indices-of-n-maximum-values-in-a-numpy-array

able to come up with is In 1 import numpy as np In 2 arr np.array 1 3 2 4 5 In 3 arr.argsort 3 1 Out 3 array 4 3 1 This involves..

Changing image hue with Python PIL

http://stackoverflow.com/questions/7274221/changing-image-hue-with-python-pil

returns another PIL image. img image.convert 'RGBA' arr np.array np.asarray img .astype 'float' new_img Image.fromarray shift_hue.. rgb img Image.open 'tweeter.png' .convert 'RGBA' arr np.array np.asarray img .astype 'float' if __name__ '__main__' green_hue..

Simple Digit Recognition OCR in OpenCV-Python

http://stackoverflow.com/questions/9413216/simple-digit-recognition-ocr-in-opencv-python

1 100 samples np.append samples sample 0 responses np.array responses np.float32 responses responses.reshape responses.size..