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Mastering Development

Find the number closest to zero in an array

I have a bunch of numpy arrays that have both positive and negative numbers in them and I want to find the number closest to zero in each array not the smallest number. I also want to retain the signs of the numbers. Example below: array1 = np.array([5, 3.2, -1.2, -0.2, 7]) array2 = np.array([19, […]

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Mastering Development

Search and process data from multi-index DataFrames

I have two dataframes df2, with the payment statistics (that have the probability of the client pay a certain debt) and df3 with new clients data. import pandas as pd d = {‘City’: [‘Tokyo’,’Tokyo’,’Lisbon’,’Tokyo’,’Tokyo’,’Lisbon’,’Lisbon’,’Lisbon’,’Tokyo’,’Lisbon’,’Tokyo’,’Tokyo’,’Tokyo’,’Lisbon’,’Tokyo’,’Tokyo’,’Lisbon’,’Lisbon’,’Lisbon’,’Tokyo’,’Lisbon’,’Tokyo’], ‘Card’: [‘Visa’,’Visa’,’Master Card’,’Master Card’,’Visa’,’Master Card’,’Visa’,’Visa’,’Master Card’,’Visa’,’Master Card’,’Visa’,’Visa’,’Master Card’,’Master Card’,’Visa’,’Master Card’,’Visa’,’Visa’,’Master Card’,’Visa’,’Master Card’], ‘Colateral’:[‘Yes’,’No’,’Yes’,’No’,’No’,’No’,’No’,’Yes’,’Yes’,’No’,’Yes’,’Yes’,’No’,’Yes’,’No’,’No’,’No’,’Yes’,’Yes’,’No’,’No’,’No’], ‘Client Number’:[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22], ‘DebtPaid’:[0.8,0.1,0.5,0.30,0,0.2,0.4,1,0.60,1,0.5,0.2,0,0.3,0,0,0.2,0,0.1,0.70,0.5,0.1]} df = pd.DataFrame(data=d) df2=df.groupby([‘City’,’Card’,’Colateral’])[‘DebtPaid’].\ value_counts(bins=[-0.001,0,0.25,0.5,0.75,1,1.001,2],normalize=True) […]

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Mastering Development

p5.js – Fail to detect collision

So we have this code for checking collisions in p5js and it’s not working. We’ve already read all the answers related to this issue but clearly we are missing something and we can’t see it. This is the class: class Cerchio_gen { constructor(x, y, speed, unit,raggio, color) { this.x_ = x; this.y_ = y; this.Speed […]

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Mastering Development

Is there any zoom in and zoom out feature like plus, minus magnifying icon to show the echarts?

I have a echart which is in radial form (circular form), as the data grows then the graph becomes too busy that the end user cant be able to see whats there in the graph. For that i have checked the documentation of echarts. I got one property which is actually working for mouse scroll […]

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Mastering Development

how to calculate the scatter within classes for a 50×20 matrix

I am trying to reduce a largely dimentional matrix to only 2D, i was using an example for 2D arrays,which works, but i would need to do the same for a higher dimentional scatter. I have two classes and each classes have matrices of 50×20 dimensional feature spaces. For my example i have these 2D […]

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Mastering Development

Error in guess(varying) when trying to fit an mlogit in R

I am struggling to reproduce a choice modeling mlogit example with willingness to pay. When I try to fit the first mlogit, I get an error that says "Error in guess(varying) : failed to guess time-varying variables from their names In addition: Warning message: In dfidx::dfidx(data = data, dfa$idx, drop.index = dfa$drop.index, : the levels […]

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Mastering Development

Make a custom loss function in Keras for Variance calculation in the group

I have been trying to make a custom loss function in Keras for adding extra limits to groups. I have a backbone network with output as the same size as the input image to evaluate a probability(0~1). Here I have group information that has the same size as input and output. The same value in […]

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Linux Mastering Development

How to write grid in csv file in python

I have a list of tuples. Each tuple contain 2 values, together with the results of an operation between the two values. Here is an example: my_list = [(1,1,1.0), (1,2,0.8), (1,3,0.3), (2,1,0.8), (2,2,1.0), (2,3,0.5), (3,1,0.3), (3,2,0.5), (3,3,1.0)] I need to store this value in a csv file so that they look like this: 0 1 […]

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Game Creation Mastering Development

Raycaster doesnt send multiple rays

Hi i followed an tutorial video on Youtube:https://www.youtube.com/watch?reload=9&v=gYRrGTC7GtA I wrote everything nearly same in video but it doesn’t make multiple rays so i can only see one rendered line on screen here is code: #include <stdio.h> #include <stdlib.h> #include "glut.h" #include <math.h> #define PI 3.1415926535 #define P2 PI/2 #define P3 3*PI/2 #define DR 0.0174532925 //one […]

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Mastering Development

How to change the color of Html.DisplayFor boolean result

The rendered result for Html.DisplayFor on a boolean value is a disabled checkbox. I just want to change its color. I’ve looked on many websites, including this one, but most of the help around this topic is for people who want to change the display to between two text values. I created a custom css […]