|
Search Results
|
| Post |
Author |
Forum |
Replies |
Views |
Posted
[asc]
|
| |
|
Thread: comparing each rows of two matrix
Post: RE: comparing each rows of two matrix
| The only idea I have:
Transforming the matrices into two lists, and a nested for cycle...
a_lista=a.tolist()
b_lista=b.tolist()
#"a" and "b" were my previously defined np.matrices
for i in range(4):
... |
|
PhysChem |
Data Science |
10 |
6,037 |
May-16-2019, 09:47 AM |
| |
|
Thread: comparing each rows of two matrix
Post: RE: comparing each rows of two matrix
| Hi, after a long pause, I started to play with Python again. I have a question:
How can I print which row-vektors were identical, if I am using solution given by Gribouillis? (I want to print the ord... |
|
PhysChem |
Data Science |
10 |
6,037 |
May-14-2019, 09:22 AM |
| |
|
Thread: comparing each rows of two matrix
Post: RE: comparing each rows of two matrix
| Hi all!
Thank you for the solutions. I applied the Counter-code, because the matrices have lots of rows (much more than in my question). |
|
PhysChem |
Data Science |
10 |
6,037 |
Apr-21-2019, 03:13 PM |
| |
|
Thread: comparing each rows of two matrix
Post: RE: comparing each rows of two matrix
| Thank you for the answers! |
|
PhysChem |
Data Science |
10 |
6,037 |
Apr-18-2019, 12:03 PM |
| |
|
Thread: comparing each rows of two matrix
Post: comparing each rows of two matrix
| I have two numpy-matrices ("A" and "B"). I want to compare every row-vector in "A" matrix with every row-vector in "B" matrix.
Here is my (not working) code. The expected output is 5.
import numpy ... |
|
PhysChem |
Data Science |
10 |
6,037 |
Apr-18-2019, 06:17 AM |
| |
|
Thread: "erlarge" a numpy-matrix to numpy-array
Post: RE: "erlarge" a numpy-matrix to numpy-array
| Thank you!
This is exactly, what I want. |
|
PhysChem |
Data Science |
2 |
2,998 |
Apr-09-2019, 04:54 PM |
| |
|
Thread: "erlarge" a numpy-matrix to numpy-array
Post: "erlarge" a numpy-matrix to numpy-array
| Hi all!
Is there a way to concatenate/append/"gluetogether" two (n*m-shaped) matrix into a single (n*m*2-shaped) array (with 3 axle), and not into an other (2n*m-shaped) or (n*2m-shaped) matrix?
I ... |
|
PhysChem |
Data Science |
2 |
2,998 |
Apr-08-2019, 05:02 PM |
| |
|
Thread: counting the occurence of a specified number in a numpy-matrix
Post: RE: counting the occurence of a specified number i...
| Oké, it seems, i have a solution. The newer versions of the Spyder IDE support the copy paste. |
|
PhysChem |
Data Science |
1 |
2,411 |
Apr-03-2019, 01:37 PM |
| |
|
Thread: counting the occurence of a specified number in a numpy-matrix
Post: counting the occurence of a specified number in a ...
| Hi!
There is a numpy-matrix with a couple column and about 100000 row. For now, only the last element of each row is important.
I wish to count, that how many row has the number 1 as the last element... |
|
PhysChem |
Data Science |
1 |
2,411 |
Apr-03-2019, 06:27 AM |
| |
|
Thread: Diffusion simulation. Works, but how to make it fast
Post: RE: Diffusion simulation. Works, but how to make i...
| I solved it :-)
The old code worked the following way:
1.step) the python read the first row of the k-matrix (which contains the coordinates),
2.step) then -according to the last coordinate- it decid... |
|
PhysChem |
Data Science |
2 |
2,814 |
Oct-12-2018, 05:12 PM |
| |
|
Thread: Diffusion simulation. Works, but how to make it fast
Post: Diffusion simulation. Works, but how to make it fa...
| Hi all!
I wrote a -primitive- diffusion simulator, although it works there is one problem: It is damn slow. (30000 diffusion-step took almost a day **huh** )
How it's look like:
There is a 1000... |
|
PhysChem |
Data Science |
2 |
2,814 |
Oct-10-2018, 07:20 PM |
| |
|
Thread: random matrix, with some special feature
Post: RE: random matrix, with some special feature
| You are right!
I wrote the 3th post quite after I quitted from the python3, and I didn't used the copy-past. Now I reviewed, what was typed in the terminal. I have used the rows=[[-1, 0, 0], [0,-1,0... |
|
PhysChem |
Homework |
6 |
3,701 |
Aug-28-2018, 07:41 PM |
| |
|
Thread: random matrix, with some special feature
Post: RE: random matrix, with some special feature
| No problem, once you told me the random.choice() function, I got what I needed.
Is there any difference between list([blabla], [bla]) and [[blabla], [bla]] ?
Or the interpreter handle them as syno... |
|
PhysChem |
Homework |
6 |
3,701 |
Aug-28-2018, 06:56 PM |
| |
|
Thread: random matrix, with some special feature
Post: RE: random matrix, with some special feature
| Thank you for the answer.
The matrix is not exactly what I want (only one non-zero element is wanted in each row), but I was able to modify it. Instead of using the permutations() function I typed th... |
|
PhysChem |
Homework |
6 |
3,701 |
Aug-28-2018, 05:06 PM |
| |
|
Thread: random matrix, with some special feature
Post: random matrix, with some special feature
| Hi!
I wish to create a random 1000*3 sized (1000 row & 3 column) matrix with the following conditions:
1) the matrix must be filled only with the following elements: -1; 0; 1
2) in every row-v... |
|
PhysChem |
Homework |
6 |
3,701 |
Aug-28-2018, 03:48 PM |
