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More efficient way to get a data matrix based on some value and index matrices in R?
user_12181373
0
•
asked Oct 8, 2019
3
2
101
variable-assignment
r
indexing
matrix
Rotation of an object in the tangent space of a globe
user_4236091
0
•
asked Oct 7, 2019
3
0
204
three.js
quaternions
geospatial
matrix
geometry
Convert a column vector into a extended diagonal matrix
user_12073743
0
•
asked Oct 1, 2019
4
2
254
diagonal
vector
r
matrix
R: Fast way to group matrix rows by considering only the place of NA values
user_1953718
0
•
asked Oct 1, 2019
3
5
238
na
r
matrix
performance
Rendering equation - Vectorization of computations
user_5765649
0
•
asked Jul 3, 2019
2
0
40
vectorization
computer-vision
matrix
python
How to calculate effective resistance for weighted directed graph?
user_11728456
0
•
asked Jul 2, 2019
2
0
221
graph-theory
r
matrix
Vectorize shuffle for blocks of matrix rows
user_6930340
0
•
asked Jul 2, 2019
4
1
81
shuffle
vectorization
matrix
matlab
R - Merge Matrices on a common column
user_10105150
0
•
asked Jul 1, 2019
2
0
140
r
merge
matrix
Improving the performance of many sub-matrix left division operations (mldivide, \)
user_11132990
0
•
asked Jun 30, 2019
2
3
429
least-squares
multidimensional-array
matrix
matlab
performance
Does scipy.linalg.inv check whether the matrix is diagonal?
user_4533188
0
•
asked Jun 28, 2019
3
2
576
scipy
matrix
python
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