I’m running a k-means algorithm (k=5) to cluster my Data. To check the stability of my algorithm, I first run the algorithm once on my whole dataset and afterwards I run the algorithm multiple times on 2/3 of my dataset (using a different random states for the splits). I use the results to predict the c…
Tag: arrays
Intersection of two 2-D numpy arrays with unequal rows and columns
I have 2 arrays, one of shape (455,98) and a second with shape (182,472). A geometric description is as per the attached image. Is there a pythonic way to do this? I would also be happy to receive guidance on how to write a function to achieve this. Answer Don’t know if I understood your question comple…
How to take input in this form in python?
So, I want to take input of the following – The first line contains an integer n. Each of the following n lines contains a pair of distinct space-separated integers. I want to store the inputs of first column in one array and the second column in another array. I came up with this code, can you tell me …
Merge two Lists of different size
I have an issue with some part of my code, I’m fetching two apis and then mixing the results in one array: Initialy the two arrays seems like this (although they can be empty or with more or less data): Their shapes are: So of course, when I try to append them in the 2nd dimension: I get this error:
How to convert and save a list of ints to a bitmap image?
I’m trying to convert a list of numbers that I believe represent bytes that together constitute a bitmap image, into said image file (saved to disk) and/or simply converted into a form usable by tesseract. I’d prefer to be able to visualize the images, though, to make sure the conversion actually …
Create an array of repeating values with numpy
Given the following array, where the elements in the array are a value at index [0], and its frequency at index [1]. I need an array that is the length of the sum of the frequencies, filled with v, based on their respective frequency. This can be done with How can I do this with a vectorized numpy method? No
Replace string in a list using python and save it with different variable
I am trying to replace a string with another string in a list, but failed and I don’t know why. For example, I have a list: i want to replace __label__1 with “OK” and __label__0 with “NOT OK” and save it in different variable using : but it failed to replace any of it Answer The …
Why is print not printing my array sorted
This is my original array: a = [0, 4, 7, 8, 1, 3, 5, 2, 6] and this is what it prints: [0, 4, 7, 0, 0, 0, 5, 0, 0] Answer As @’Lee Jun Wei’ it doesn’t look like your algo is right. But there may be a few other things to point out. These two lines look off.
How to replace values in a np 2d array based on condition for every row
I have a numpy 2d array (named lda_fit) with probabilities, where I want to replace the probabilities with 0 or 1, based on the max value in each line. So after all the first line should look like [0,1,0,0], the second like [1,0,0,0] and so on. I have tried, and this works, but only for a given threshold (0.5…
How do I convert an array of seconds to time series array in Python?
I have an array like this (in seconds) timebin= [79203 79213 79223 79233 79243 79253 79263………………82783] and I wish to convert these values to actual time of the day like [22:00:03, 22:00:13,………22:59:43] I have the following code but it doesn’t convert…