| | I have created a multidimensional array in Python like this:
self.cells = np.empty((r,c),dtype=np.object)
Now I want to iterate through all elements of my twodimensional array, and I do not care about the order. ... | I'm trying to run over the parameters space of a 6 parameter function to study it's numerical behavior before trying to do anything complex with it so I'm searching for a ... | Good day coders and codereses,
I am writing a piece of code that goes through a pile of statistical data and returns what I ask from it. To complete its task the ... | Right, perhaps I should be using the normal Python lists for this, but here goes:
I want a 9 by 4 multidimensional array/matrix (whatever really) that I want to store arrays in. ... | The data-element is a float-number and no sequence (I think). But I get the error "setting an array element with a sequence".
folder = r"C:\Dokumente und Einstellungen\ssc"
contents=os.listdir(folder)
ar = zeros((81,81,256),int)
filenumber = 0
for d ...
| I have a 2d array in the numpy module that looks like:
data = array([[1,2,3],
[4,5,6],
...
| In another question, other users offered some help if I could supply the array I was having trouble with. However, I even fail at a basic I/O task, such as writing ... | | I'm working with model output at the moment, and I can't seem to come up with a nice way of combining two arrays of data. Arrays A and B store ... | I have a 2x2 numpy array :
x = array(([[1,2],[4,5]]))
which I must merge (or stack, if you wish) with a one-dimensional array :
y = array(([3,6]))
by adding it to the end of the ... | I have a two dimensional array, i.e. an array of sequences which are also arrays. For each sequence I would like to calculate the autocorrelation, so that for a (5,4) array, ... | I have a 2d numpy array called FilteredOutput that has 2 columns and 10001 rows, though the number of rows is a variable.
I am trying to take the 2nd column of ... | Suppose I have
a = array([[1, 2],
[3, 4]])
and
b = array([1,1])
I'd like to use b in index a, that is to ... | I have a multidimensional array a with shape (nt, nz, ny, nx). The dimensions are time, z, y, x. For each time, x and y, I've selected the appropriate z in ... | I have a 4 dimensional array, i.e., data.shape = (20,30,33,288). I am finding the index of the closest array to n using
index = abs(data - n).argmin(axis = 1), so
index.shape = ...
| I am trying to implement an image classification algorithm in Python. The problem is that python takes very long with looping through the array. That's why I decided to write a ... | How can I turn a list such as:
data_list = [0,1,2,3,4,5,6,7,8,9]
into a array (I'm using numpy) that looks like:
data_array = [ [0,1] , [2,3] , [4,5] , [6,7] , [8,9] ]
Can I ... | Is it possible to map a numpy array in place? If yes, how?
Given a_values - 2D array - this is the bit of code that does the trick for me at ... | I've found the following puzzling behavior with NumPy and a custom dtype for an ndarray:
import numpy as np
# Make a custom dtype with a single triplet of floats (my actual dtype ...
| Suppose I have defined a 3x3x3 numpy array with
x = numpy.arange(27).reshape((3, 3, 3))
Now, I can get an array containing the (0,1) element of each 3x3 subarray with x[:, 0, 1], which ... | I have a 2d array with shape (x, y) which I want to convert to a 3d array with shape (x, y, 1). Is there a nice Pythonic way to do ... | I am new to using the numpy class and I am having problems with manipulating the contents of the array. Here is the code:
# finance equation to apply to each element ...
| In Numpy, I can concatenate two arrays end-to-end with np.append or np.concatenate:
>>> X = np.array([[1,2,3]])
>>> Y = np.array([[-1,-2,-3],[4,5,6]])
>>> Z = np.append(X, Y, axis=0)
>>> Z
array([[ 1, 2, 3],
...
| I'm working with 3-dimensional arrays (for the purpose of this example you can imagine they represent the RGB values at X, Y coordinates of the screen).
>>> import numpy as np
>>> a ...
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