I have a DataFrame, df. n is a column denoting the number of groups in the x column. x is a column containing the comma-separated groups.
Languages
Languages
Languages
How can I change the location of columns without using pandas
I have a matrix as shown below;And here's my code block:If a column full of A's, I want to move that column to the most right side, but my code moves all A's to right. This is my output:
Languages
Transform binary vector to binary matrix
I have a binary vector that holds information on whether or not some event happened for some observation:
Languages
Deprecation status of the numpy matrix class
What is the status of the matrix class in numpy? I keep being told that I should use the ndarray class instead. Is it worth/safe using the matrix class in new code I write? I don't understand why I should use ndarrays instead.
Languages
Numpy: Efficient way to convert indices of a square matrix to its upper triangular indices
Question: given a tuple of index, return its order in upper triangular indices. Here is an example:Suppose we have a square matrix A of shape (3, 3).
Languages
Diagonal snake filling array
Python 3.7. I'm trying to fill multidimensional array (n*m size) in diagonal-snake pattern:I have a function for n x n size and it works fine for it. But for n x m size it returns:
Languages
Find equal rows between two Matlab matrices
I have a matrix index in Matlab with size GxN and a matrix A with size MxN. Let me provide an example before presenting my question.
Languages
Create matrix row-index which increments when rowsum > 100, and following row
I have a matrix:I want to add a column with rows index. This index will starts at 1 and repeats the same index, until it arrived to a row where the rowsums is > 100 to move to the next value.
Languages
How to calculate the sum of “submatrix” entries with numpy/pandas?
I have the following 8x8 matrix in Python, which I have represented as either an 8-by-8 numpy array, or a pandas DataFrame:
Languages
Select entries of matrix based on given locations
I have following matrix (MxN where M ≤ N):From each row, I want to select following column entries respectively (one per row):
