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How to divide column in dataframe by values in a dict according to some key?

I have a dataframe df with the columns delta and integer_id . I have a dict d that maps integer_id to some floating point value. I want to divide each row's delta in df by the corresponding value from d for the integer_id , and if the row's integer_id doesn't exist in the dict, leave delta unchanged. Here's an example: df = pd.DataFrame({ "integer_id": [1, 2, 3], "delta": [10, 20, 30] }) d = {1: 0.5, 3: 0.25} The result should be df = pd.DataFrame({ "integer_id": [1, 2, 3], "delta": [20, 20, 120] # note the middle element is unchanged }) I tried df["delta"] /= df.integer_id.map(d) , but this will return NaN for the second row because d doesn't have the corresponding key. But something like df["delta"] /= df.integer_id.map(lambda x: d.get(x, 1)) will get what I need, but I'm wondering what other approaches there are for this case? source https://stackoverflow.com/questions/7
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I'm having problems when sending User's Id's on a django model

I'm tryng to do a post method on projetos on my Vue Front-end but i keep getting the error message of "null value in column "professor_id" of relation "fabrica_projeto" violates not-null constraint" even though the request body is the same when i try to post on django-admin and it works there I'm kinda new to this whole coding world so sorry if my vocabulary is lacking On Vue/ my front-end enter image description here On Django-Admin(works) enter image description here enter image description here This is the model for Projeto enter image description here from django.db import models from usuario.models import Usuario from uploader.models import Image class Projeto(models.Model): nome = models.CharField(max_length=200) descricao = models.CharField(max_length=2500) data = models.DateTimeField(auto_now_add=True) professor = models.ForeignKey(Usuario, related_name='professor', on_delete=models.PROTECT) alunos = m
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How to make Input Checkbox checked by default [closed]

<div \*ngFor="let serviceName of selectedServices_user" class="left-align-label"\> <label style="text-align: left;"\> <input class="left-align-label" type="checkbox" checked="true"\[(ngModel)\]="selectedServices_user\[serviceName\]" \[style.margin-top.px\]="i === 0 ? 10 : 0" style="text-align: left;"\> </label\> This is my html, please help me select all the checkboxes by default? Tried everything from checked to checked="true" doesn't seem to work Via Active questions tagged javascript - Stack Overflow https://ift.tt/OTmRClD
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Open url directly after scan with html5-qrcode (javascript)

I used the html5qrscan code from geeksforgeeks ( url ) After successfully scanning the QR code a message including the url of the QR code is shown, I would prefer to automatically get redirected to the url. I have a project with a due date in a couple of days, but I no idea how to solve this. Help is very much appreciated! I've tried to fix it, but I'm clueless and I give up. Org. codes from geeksforgeeks: <!-- Index.html file --> <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <link rel="stylesheet" href="style.css"> <title>QR Code Scanner / Reader </title> </head> <body> <div class="container"> <h1>Scan QR Codes</h1> <div class="section">
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Unable to get id value in vanilla JavaScript [closed]

I am trying to fetch data from Pixabay api using JavaScript. Currently, I am able to display the api data but I am trying to create a separate page for each image id dynamically. For example, if someone click on one image, it should redirect to a different page called photos.html/id/photoname. JavaScript Code let editorChoice = document.querySelector('.editorchoice') async function getImg(){ let imgData = await fetch('https://pixabay.com/api/?key=12345&editors_choice') let imgRaw = await imgData.json() console.log(imgRaw) let itemData = imgRaw.hits //To create <div class="row"> in each row dynamically for(let i = 0; i < itemData.length; i++) { //Declare item variable and store itemData since itemData has stored api details let item = itemData[i] //i stands for those id starts from 0 in the api. //It won't possible to display image if we don't add i let imgId = item.id let imgType = item.type l
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How to import a library only if it exists in Vite?

Let's say in my library I want to import an animation library only if the developer has installed it. Pseudo code as follows: let utility = null // If the library returns the library location as a string if (Boolean(require.resolve('animation-library'))) { import('animation-library').then(library => utility = library.helper) } Currently, on Vite (Rollup.js) you get a warning, as the import is analyzed on compilation. The above dynamic import cannot be analyzed by Vite. See https://github.com/rollup/plugins/tree/master/packages/dynamic-import-vars#limitations for supported dynamic import formats. If this is intended to be left as-is, you can use the /* @vite-ignore */ comment inside the import() call to suppress this warning. Via Active questions tagged javascript - Stack Overflow https://ift.tt/FfPtnER
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