April 2025
Intermediate to advanced
352 pages
9h 18m
Portuguese (Portugal, Brazil)
Content preview from Analítica de futebol com Python e R
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Apêndice A. Noções básicas de Python e R
Este apêndice fornece detalhes sobre os conceitos básicos de Python e R. Para leitores não familiarizados com qualquer uma das linguagens, recomendamos que passes uma ou duas horas a trabalhar em tutoriais básicos, tais como os listados nas páginas iniciais do projeto listadas em "Instalação Local".
Dica
Tanto em Python como em R, podes aceder a ficheiros de ajuda integrados para uma função escrevendo help("function")Por exemplo, escrevendo help("+") carrega um ficheiro de ajuda para o operador de adição. Em R, muitas vezes também podes utilizar o atalho ? (por exemplo, ?"+"), mas precisas de utilizar aspas para alguns operadores, como+ ou -.
Obter o Python e o R
Existem duas opções para correr Python ou R. Podes instalar o programa localmente num computador ou usar uma versão alojada na Cloud. Desde a chegada do computador pessoal no final da década de 1980 até a década de 2010, quase toda a computação era local. As pessoas descarregavam e instalavam software no seu computador local, a menos que o seu empregador alojasse (e pagasse) acesso à Cloud ou servidores locais. A maioria das pessoas ainda usa esta abordagem e utiliza a computação local em vez da Cloud. Mais recentemente, as ferramentas Cloud à escala do consumidor tornaram-se facilmente disponíveis. Existem soluções de compromisso para a utilização de ambas as abordagens:
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Vantagens da utilização de um computador pessoal:
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Tens custos conhecidos, iniciais e únicos para o ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.