I want to append each element of [1,2] to [[1], [2], [3]] and as a consequence, the final array that I want is [[1,1], [1,2], [2,1], [2,2], [3,1], [3,2]] But my code has a mistake I couldn’t recognize it yet, and the result of the python code below is [[1, 1, 2], [1, 1, 2], [2, 1, 2], [2, 1,
Tag: arrays
Numpy insert matrix values with matrix index
I have the following code which creates a 4D grid matrix and I am looking to insert the rolled 2D vals matrix into this grid. If vals would be a 1D array and I would use a 1D insert_map array as a reference it would work, however using it in multiple dimensions seems to be an issue and it raises
Remove rows in which string contains other letters than A,C,T,G,N
I’m fairly new to numpy and pandas, let’s say that I have a 2D numpy array and I need to delete all rows in which the second value contain only the letters ‘A’, ‘C’, ‘T’, ‘G’ and ‘N’ so after filtering I can get this I wanted to do 3 for loops that are checking each char one by one
2D Vectorization of unique values per row with condition
Consider the array and function definition shown: The point of the function is to return the rows of array a that have exactly grpCount groups of elements that each hold exactly grpSize identical elements. For example: As expected, the code outputs out = [[2, 2, 5, 6, 2, 5], [3, 3, 7, 7, 3, 3]]. The 1st output row has
Optimizing a standard deviation function Pandas Numpy Python
The std pandas function below calculates the standard deviation of every nth value defined by number. So it would take the the values of PC_list with indexes [0,1,2,3,4,5] and calculate the standard deviation and then the indexes [1,2,3,4,5] and calculate the standard deviation until the end of PC_list. I am trying to optimize the code by trying to make it
Getting the minimum indexes with numpy Python
I am trying to get the index values of the function. But I want to get the minimum instead of the maximum values of just like the post: post. I have tried to convert the function below to work for the minimum values unlike the maximum values to getting the indexes. Max Values: Index Function Answer For the minimum, you
Error with using length function; output will not be anything other than one
I have multiple csv files I’ve uploaded into both google colab and jupyter notebook. I can successfully print certain lines of my file. The file contains rows of strings. When I open the file it opens the number application of my MacBook. Anyways, for some reason whenever I try to print the length of ANY line in my file, python
How to convert a array of array to array of tuples
I everyone, I struggle to convert an array of array like this : to an array of tuples (array, str) like this: I did find a way to append the type to the array but it’s not exactly what I want: Do you have something better ? Thanks :) Answer Solution Shortest solution: list(zip(vals, types)) 🔥🔥🔥 Output:
Python: Expand 2D array to multiple 1D arrays
Consider the followoing example from np.meshgrid docs: In my application, instead of x and y, I’ve 25 variables. To create a grid out of the 25 variables, one way would be: However, the code will look ugly and not modular w.r.t. the number of variables (since each variable is hard-coded). Therefore, I am interested in something like the following: However,
Python – TicTacToe
In this question I have to create a TicTacToe game in python which will run in terminal. This is a 2player game and if any player wins by the rules of TicTacToe, Winner = player 1/2 has to be printed. I’m getting a winner statement when I have three 0’s or 1’s diagonally but I’m not getting winner in other