KnowledgeHub
Questions
Tags
Users
Search
Alex Rivera
|
Logout
Questions tagged
numpy
308 questions · page 2 of 7
Follow Tag
Sort by:
Newest
Votes
Active
15
votes
3
answers
In numpy, what does indexing an array with the empty tuple vs. ellipsis do?
python
arrays
numpy
indexing
asked 2013-02-04T14:51:41.540
58
votes
10
answers
NumPy first and last element from array
python
arrays
numpy
asked 2013-01-30T17:10:18.183
8
votes
0
answers
Using Numpy with ARM processors
python
numpy
arm
asked 2013-01-29T20:00:02.990
8
votes
3
answers
Grayscale image to NumPy array for Fourier transform
python
image-processing
numpy
python-imaging-library
fft
asked 2013-01-29T06:35:16.463
14
votes
5
answers
Using numpy to efficiently convert 16-bit image data to 8 bit for display, with intensity scaling
python
image
image-processing
numpy
asked 2013-01-22T17:25:42.850
9
votes
1
answers
Python package to estimate Perron-Frobenius Eigenvalue of real, square, non-negative matrix
python
numpy
scipy
sparse-matrix
asked 2013-01-22T03:11:43.427
48
votes
3
answers
Is there a convenient way to apply a lookup table to a large array in numpy?
arrays
numpy
python-2.x
lookup-tables
asked 2013-01-21T23:01:40.350
16
votes
2
answers
How to vectorize this python code?
python
numpy
vectorization
asked 2013-01-21T21:22:19.443
9
votes
3
answers
Can I rename fields in a numpy record array
python
numpy
matplotlib
asked 2013-01-20T22:20:20.300
10
votes
2
answers
unsupported operand type(s) for *: 'numpy.ndarray' and 'numpy.float64'
python
numpy
operand
asked 2013-01-18T21:42:46.830
14
votes
3
answers
python pandas custom agg function
python
numpy
pandas
asked 2013-01-09T21:27:11.447
9
votes
1
answers
Python throws TypeError on issubclass() when issubclass() is never called
python
numpy
python-2.7
asked 2013-01-02T19:51:35.697
10
votes
1
answers
Summing over pair of indices (or more) in Python
python
numpy
sum
asked 2012-12-27T00:15:00.613
9
votes
1
answers
How to convert the time zone of the values of a Pandas Series
datetime
numpy
timezone
pandas
asked 2012-12-22T16:34:15.983
9
votes
3
answers
Make the sum of integers in a matrix maximal by multiplying rows and columns by -1
python
algorithm
numpy
python-3.x
asked 2012-12-20T21:53:11.020
12
votes
5
answers
How to save numpy masked array to file
python
numpy
asked 2012-12-14T10:42:19.037
15
votes
2
answers
How do I approximate the Jacobian and Hessian of a function numerically?
numpy
scipy
numerical
asked 2012-12-13T08:19:09.253
25
votes
2
answers
What is the fastest way to slice a scipy.sparse matrix?
python
numpy
scipy
sparse-matrix
asked 2012-12-12T15:43:51.247
20
votes
4
answers
Matplotlib: Color-coded text in legend instead of a line
python
numpy
matplotlib
plot
legend
asked 2012-12-11T20:46:42.403
14
votes
2
answers
Finding the indices of the top three values via argmin() or min() in python/numpy without mutation of list?
python
list
numpy
min
asked 2012-12-08T23:33:16.087
10
votes
2
answers
How do I get wider numpy array print output?
python
arrays
printing
numpy
asked 2012-12-08T03:10:35.660
20
votes
3
answers
Trailing delimiter confuses pandas read_csv
python
pandas
numpy
csv
delimiter
asked 2012-12-05T09:29:44.010
12
votes
1
answers
limit how much data is read with numpy.genfromtxt for matplotlib
python
numpy
matplotlib
asked 2012-12-01T21:04:15.910
57
votes
1
answers
How to use numpy.where with logical operators
python
numpy
where-clause
logical-operators
asked 2012-11-27T17:10:18.703
26
votes
6
answers
Replace values of a numpy index array with values of a list
python
numpy
indexing
asked 2012-11-26T20:17:17.487
90
votes
6
answers
How to calculate the sum of all columns of a 2D numpy array (efficiently)
python
numpy
asked 2012-11-26T14:55:05.183
14
votes
4
answers
Python lists/arrays: disable negative indexing wrap-around in slices
python
arrays
list
numpy
slice
asked 2012-11-16T04:47:04.343
33
votes
4
answers
Elegant grid search in python/numpy
python
numpy
asked 2012-11-13T23:18:17.383
11
votes
2
answers
2D numpy array does not give an error when indexing with strings containing digits
python
numpy
indexing
asked 2012-10-31T12:55:17.380
11
votes
1
answers
How do I split an ndarray based on array of indexes?
python
numpy
asked 2012-10-26T19:00:12.487
10
votes
5
answers
How to plot line (polygonal chain) with numpy/scipy/matplotlib with minimal smoothing
python
numpy
matplotlib
scipy
spline
asked 2012-10-17T13:11:00.217
52
votes
2
answers
numpy unique without sort
python
numpy
asked 2012-10-17T03:58:57.333
8
votes
3
answers
Reliable way to get the "build" directory from within setup.py
python
numpy
setuptools
distutils
setup.py
asked 2012-10-15T13:13:33.600
149
votes
3
answers
float64 with pandas to_csv
python
numpy
pandas
asked 2012-10-13T21:31:34.397
14
votes
1
answers
Weighted moving average with numpy.convolve
python
math
numpy
asked 2012-10-10T09:22:14.227
9
votes
2
answers
Linear regression - reduce degrees of freedom
python
numpy
statistics
pandas
curve-fitting
asked 2012-09-30T19:58:30.657
11
votes
5
answers
Slicing numpy array with another array
python
arrays
numpy
slice
asked 2012-09-25T19:38:55.180
19
votes
1
answers
What does matplotlib `imshow(interpolation='nearest')` do?
python
image-processing
numpy
matplotlib
asked 2012-09-18T08:52:52.363
29
votes
2
answers
Creating a 3D plot from a 3D numpy array
python
numpy
matplotlib
matplotlib-3d
asked 2012-09-13T20:53:10.237
9
votes
3
answers
Alternative to Scipy mode function in Numpy?
numpy
scipy
frequency
mode
asked 2012-09-13T03:43:11.060
8
votes
2
answers
From tick by tick data to candlestick
python
numpy
scipy
finance
pandas
asked 2012-09-07T17:38:32.373
32
votes
6
answers
Efficient way to normalize a Scipy Sparse Matrix
python
numpy
scipy
sparse-matrix
asked 2012-09-06T17:06:03.517
8
votes
1
answers
Numpy C API: Link several object files
python
c
gcc
numpy
asked 2012-09-03T19:59:47.803
9
votes
1
answers
splitting a sparse matrix into two
python
numpy
scipy
sparse-matrix
asked 2012-08-31T10:49:01.080
25
votes
2
answers
Efficiently rotate a set of points with a rotation matrix in numpy
python
numpy
rotation
vectorization
asked 2012-08-27T19:30:57.667
9
votes
1
answers
Unable to load a previously dumped pickle file of large size in Python
python
numpy
networkx
pickle
asked 2012-08-21T18:32:11.880
10
votes
1
answers
numpy FloatingPointError: invalid value encountered in subtract - not reproducible?
python
numpy
asked 2012-08-20T17:08:20.430
13
votes
4
answers
Theano fails due to NumPy Fortran mixup under Ubuntu
numpy
scipy
gfortran
theano
asked 2012-08-16T12:39:30.310
20
votes
3
answers
Find the set difference between two large arrays (matrices) in Python
python
numpy
set-difference
asked 2012-08-10T13:50:25.847
22
votes
2
answers
Matlab vs Python: Reshape
python
matlab
matrix
numpy
scipy
asked 2012-08-09T21:39:54.363
← Prev
page 2 of 7
Next →