57
votes
6
answers
1.5K
views
binning data in python with scipy/numpy
is there a more efficient way to take an average of an array in prespecified bins? for example, i have an arra
55
votes
21
answers
791
views
Can't install Scipy through pip
When installing scipy through pip with : pip install scipy Pip fails to build scipy and throws the followin
61
votes
13
answers
531
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ImportError in importing from sklearn: cannot import name check_build
I am getting the following error while trying to import from sklearn: >>> from sklearn import svm T
49
votes
5
answers
1.3K
views
How to check BLAS/LAPACK linkage in NumPy and SciPy?
I am builing my numpy/scipy environment based on blas and lapack more or less based on this walk through. Wh
56
votes
9
answers
695
views
Numpy Resize/Rescale Image
I would like to take an image and change the scale of the image, while it is a numpy array. For example I hav
57
votes
6
answers
2.3K
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How to create a density plot in matplotlib?
In R I can create the desired output by doing: data = c(rep(1.5, 7), rep(2.5, 2), rep(3.5, 8), rep(
59
votes
3
answers
2.5K
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Confusion between numpy, scipy, matplotlib and pylab
Numpy, scipy, matplotlib, and pylab are common terms among they who use python for scientific computation. I
56
votes
14
answers
1.5K
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Multiple linear regression in Python
I can't seem to find any python libraries that do multiple regression. The only things I find only do sim
57
votes
6
answers
1.4K
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Numpy: Divide each row by a vector element
Suppose I have a numpy array: data = np.array([[1,1,1],[2,2,2],[3,3,3]]) and I have a corresponding "vector
54
votes
2
answers
1.4K
views
Should I use scipy.pi, numpy.pi, or math.pi?
In a project using SciPy and NumPy, should I use scipy.pi, numpy.pi, or math.pi?
51
votes
5
answers
1K
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Compute a confidence interval from sample data
I have sample data which I would like to compute a confidence interval for, assuming a normal distribution. I
57
votes
16
answers
1.6K
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scipy.misc module has no attribute imread?
I am trying to read an image with scipy. However it does not accept the scipy.misc.imread part. What could be
57
votes
9
answers
1.7K
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Peak-finding algorithm for Python/SciPy
I can write something myself by finding zero-crossings of the first derivative or something, but it seems like
58
votes
8
answers
1.2K
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Installing SciPy and NumPy using pip
I'm trying to create required libraries in a package I'm distributing. It requires both the SciPy an
61
votes
10
answers
960
views
Fitting empirical distribution to theoretical ones with Scipy (Python)?
INTRODUCTION: I have a list of more than 30,000 integer values ranging from 0 to 47, inclusive, e.g.[0,0,0,0,.
55
votes
8
answers
2.6K
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How to normalize a NumPy array to within a certain range?
After doing some processing on an audio or image array, it needs to be normalized within a range before it can
57
votes
7
answers
2.3K
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Does Python SciPy need BLAS?
numpy.distutils.system_info.BlasNotFoundError: Blas (http://www.netlib.org/blas/) libraries not found.
60
votes
8
answers
2.4K
views
Specifying and saving a figure with exact size in pixels
Say I have an image of size 3841 x 7195 pixels. I would like to save the contents of the figure to disk, resul
56
votes
7
answers
1.2K
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How to add a new row to an empty numpy array
Using standard Python arrays, I can do the following: arr = [] arr.append([1,2,3]) arr.append([4,5,6]) # arr
43
votes
7
answers
2.6K
views
How to do exponential and logarithmic curve fitting in Python? I found only polynomial fitting
I have a set of data and I want to compare which line describes it best (polynomials of different orders, expo
