Snippet 1 #While Installing R On Centos 8#You might run in to following error#nothing provides texinfo-tex needed by R-core-devel-4.0.4-1.el8.x86_64.#run following commandssudo dnf config-manager –set-enabled powertoolssudo yum install R Copyright © Code Fetcher 2020
Author: Alan
Sage/text/R_in_Action (竹本氏のblog ) http://www.pwv.co.jp/~take/TakeWiki/index.php
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Regression Trees
Estimated time needed: 20 minutes In this lab you will learn how to implement regression trees using ScikitLearn. We will show what parameters are important, how to train a regression tree, and finally how to determine our regression trees accuracy. Objectives After completing this lab you will be able to: Train a Regression Tree Evaluate… Continue reading Regression Trees
An Anatomy of Key Tricks in word2vec project with examples
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Sqlalchemy Create Engine
from sqlalchemy import create_engine source engine = create_engine(“sqlite:///hawaii.sqlite”) source engine = create_engine(f’sqlite:///../../../ih_final_project_DB/ih_final_project’) con = engine.connect() nombre_tabla = engine.table_names() source def db_connection(path): engine = create_engine(path) connection = engine.connect() return connection source #endpoint = ‘sqlite:///insiders_db.sqlite’ #local endpoint = ‘sqlite:////Users/Alysson/Documents/Projects/Hotel-Booking-Cancelation/data/hotels.sqlite’ #local db = create_engine(endpoint, poolclass=NullPool) connection = db.connect() source protocol = ‘postgresql’ password=ETL_config.password username=ETL_config.username host = ‘localhost’ port… Continue reading Sqlalchemy Create Engine
Multithreading With Queue In Python 3
Snippet 1 import pandas as pdimport threadingimport timefrom multiprocessing import Queuemy_queue = Queue(maxsize=0)#Let us define our workerdef worker(my_queue): #Add some time to fill up the queue time.sleep(5) while(my_queue.qsize() > 0): entry = my_queue.get() #Let us define our threads herenum_threads = 10threads = []try: for i in range(num_threads): t = threading.Thread(target=worker,args=(my_queue) t.start() … Continue reading Multithreading With Queue In Python 3
How To Change User Password Using Django Admin
Snippet 1 ‘’’We can change the password using admin or superuser. Assuming you have super useralready created. Please add following urls in your url.py‘’’from django.contrib import adminfrom django.urls import path, includeurlpatterns = [ path(‘admin/’, admin.site.urls), path(”, include (‘main.urls’)), path(‘accounts/’, include(‘django.contrib.auth.urls’)),]‘’’In your browser go to url your site.com/admin.Add your superuser name and password.Then click on users.Click… Continue reading How To Change User Password Using Django Admin
Django Allauth Social Login For Pre Approved Users Only
Snippet 1 from allauth.account.adapter import DefaultAccountAdapterfrom allauth.socialaccount.adapter import DefaultSocialAccountAdapterfrom django.conf import settingsfrom django.http import HttpRequestfrom django.contrib.auth import get_user_modelfrom django.http import HttpResponsefrom allauth.exceptions import ImmediateHttpResponseclass AccountAdapter(DefaultAccountAdapter): def is_open_for_signup(self, request: HttpRequest): return getattr(settings, “ACCOUNT_ALLOW_REGISTRATION”, False)class SocialAccountAdapter(DefaultSocialAccountAdapter): def pre_social_login(self, request, sociallogin): try: get_user_model().objects.get(email=sociallogin.user.email) except get_user_model().DoesNotExist: … Continue reading Django Allauth Social Login For Pre Approved Users Only
HTTP and Requests
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Probabilistic Programming and
Probabilistic Programming & Bayesian Methods for Hackers Using Python and PyMC The Bayesian method is the natural approach to inference, yet it is hidden from readers behind chapters of slow, mathematical analysis. The typical text on Bayesian inference involves two to three chapters on probability theory, then enters what Bayesian inference is. Unfortunately, due to… Continue reading Probabilistic Programming and
Pandigit checking in Fibonacci Numbers
Project Euler problem 104 is to write an algorithm to determine the first Fibonacci number for which the first 9 digits are 1-9 pandigital and the last 9 digits are also pandigital, where pandigital means that these digits are a permutation of 1 to 9. Because the answer is going to be a very large… Continue reading Pandigit checking in Fibonacci Numbers