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Python 2022-02-10 00:00:20
python randomly shuffle rows of pandas dataframe
# Basic syntax: df = df.sample(frac=1, random_state=1).reset_index(drop=True) # Where: # - frac=1 specifies returning 100% of the original rows of the # dataframe (in random order). Change to a decimal (e.g. 0.5) if # you want to sample say, 50% of the... Add solution -
Javascript 2022-02-06 16:10:31
.index of javascript
//indexOf getting index of array element, returns -1 if not found var colors=["red","green","blue"]; var pos=colors.indexOf("blue");//2 //indexOf getting index of sub string, returns -1 if not found var str = "... Add solution -
Javascript 2022-02-02 21:05:25
how to find and remove object from array in javascript
// we have an array of objects, we want to remove one object using only the id property var apps = [{id:34,name:'My App',another:'thing'},{id:37,name:'My New App',another:'things'}]; // get index of object with id:37 var removeIndex = apps.map(function... Add solution -
Javascript 2022-02-02 20:50:35
react array find index
//The findIndex() method returns the index of the first element //in the array that satisfies the provided testing function. //Otherwise, it returns -1, indicating that no element passed the test. const array1 = [5, 12, 8, 130, 44]; const isLargeNumber ... Add solution -
Other 2022-01-30 18:12:01
modul tutorial twincat
[{"id":"b0a9c705.017d08","type":"ADS Symbols","z":"524f011a.f0bce8","name":"","datasource":"","data":"SYMBOLES","x":370,"... Add solution -
Java 2022-01-30 01:55:02
binary search program in java
// Java implementation of iterative Binary Search class BinarySearch { // Returns index of x if it is present in arr[], // else return -1 int binarySearch(int arr[], int x) { int l = 0, r = arr.length - 1; while (l <= r) { int m = l ... Add solution -
Python 2022-01-26 07:30:09
poisson disc python
import numpy as np import matplotlib.pyplot as plt # Choose up to k points around each reference point as candidates for a new # sample point k = 30 # Minimum distance between samples r = 1.7 width, height = 60, 45 # Cell side length a = r/np.sqrt(2) ... Add solution