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Mastering Development

Proportion vs. binary response with pglm

I’m working with panel data comprising several years of observations of schools. My DV is a proportion of exam passers but is not normally distributed, and many observations of the DV are > 0.8. A panel linear model using plm() is therefore inappropriate, so I am trying to treat the DV as a binary response […]

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Mastering Development

Elegant way to combine multiple filtering functions in Haskell

Given the following filtering functions as unary predicates, f1 :: Int -> Bool f1 x = x > 30 f2 :: Int -> Bool f2 x = x < 60 f3 :: Int -> Bool f3 x = x `mod` 3 == 0 I’d like to filter a list of integers through all of them. […]

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Mastering Development

Fast way to remove array of specific row values from 2D numpy array

I have a 2D array like this: a = np.array([[25, 83, 18, 71], [75, 7, 0, 85], [25, 83, 18, 71], [25, 83, 18, 71], [75, 48, 8, 43], [ 7, 47, 96, 94], [ 7, 47, 96, 94], [56, 75, 50, 0], [19, 49, 92, 57], [52, 93, 58, 9]]) and I want to […]

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Mastering Development

Function to find highest value from an array of values, not using `Math.max()`

I want to create function that will find highest/maximum value from an array of values. For example: numbers = [2, 24, 48, 9, 15, 41]. How can it be done other than using Math.max()?

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Mastering Development

t test x not enough ‘x’ observations using R with package rstatix

I have the following dataset: structure(list(AgeGroup = structure(c(1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, […]

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Mastering Development

How can I get all details of the top x models from forecast::auto.arima in R?

My goal is to exactly re-create the top say 3 models from the auto.arima function in R. My example uses the following series: > data <- c(79, 73, 102, 158, 235, 326, 216, 153, 82, 87, 94, 163, 119, 81, 143, 179, 182, 247, 248, 105, 143, 64, 45, 163, 122, 95, 47, 117, 345, […]

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Mastering Development

Object.keys(myObject) returns an arbitrary list of numbers, not expected value

This is a bit of a head-scratcher – and has been a source of pain for the past 3 hours. Here’s my code. const payloadBody = JSON.parse(gatewayEvent.body); console.log(payloadBody); console.log(gatewayEvent.body); console.log(payloadBody.paymentMethodId); console.log(payloadBody[‘paymentMethodId’]); console.log(Object.keys(payloadBody)); If I look at the CloudWatch logs for this (I am executing in Lambda), the line console.log(payloadBody) logs: { "customerId": "cus_REDACTED", "paymentMethodId": "pm_REDACTED", […]

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Linux Mastering Development

Bash script using Awk/Sed to input and output a CSV file

I’m having some trouble creating a bash/awk/sed script that would take a comma-separated CSV file of three columns (firstname, lastname, date of birth), and outputs another CSV file that has the same columns from input with an additional column that shows the difference between the current date and the date of birth. $ yourscript <input […]

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CMS Mastering Development Wordpress

Google not locating user location when clicked on Button [closed]

Hey I have this Ghar ka khana website which uses this custom map code to locate user. When user clicks on button it’s stuck on white layer. The button class is "geo-location" which has these code attached to locate user. var $ = jQuery.noConflict(); var mapStyles = [ { featureType: "water", elementType: "all", stylers: [{ […]

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Cryptocurrency Ethereum Mastering Development

ethers.js wrong signature

From the same private key in ethers.js and secp256k1 I get the same eth address. But if I sign a message I get a different (wrong) signature in ethers.js. What is wrong with my code? import { createKeyPair, sign } from ‘@erebos/secp256k1’ import { pubKeyToAddress } from ‘@erebos/keccak256’ import { ethers, Wallet } from ‘ethers’; […]