{"id":10902,"date":"2025-07-15T13:34:51","date_gmt":"2025-07-15T13:34:51","guid":{"rendered":"https:\/\/functiontranslator.com\/previsao-linear\/"},"modified":"2021-02-25T17:19:49","modified_gmt":"2021-02-25T17:19:49","slug":"forecast-linear","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/pt-pt\/forecast-linear\/","title":{"rendered":"PREVIS\u00c3O.LINEAR"},"content":{"rendered":"

Introdu\u00e7\u00e3o \u00e0 Fun\u00e7\u00e3o de Previs\u00e3o Linear<\/h2>\n

A fun\u00e7\u00e3o PREVIS\u00c3O.LINEAR, dispon\u00edvel no Microsoft Excel e no Google Planilhas, \u00e9 utilizada para calcular ou prever um valor futuro, baseando-se em dados hist\u00f3ricos. Esta fun\u00e7\u00e3o \u00e9 uma ferramenta essencial em an\u00e1lises de regress\u00e3o linear, ideal para identificar tend\u00eancias e realizar an\u00e1lises estat\u00edsticas.<\/p>\n

Sintaxe e Exemplos<\/h2>\n

A sintaxe para a fun\u00e7\u00e3o PREVIS\u00c3O.LINEAR \u00e9:<\/p>\n

PREVIS\u00c3O.LINEAR(x, valores_conhecidos_y, valores_conhecidos_x)<\/code><\/pre>\n
    \n
  • x<\/strong> – o valor x para o qual a previs\u00e3o \u00e9 desejada.<\/li>\n
  • valores_conhecidos_y<\/strong> – o conjunto de dados dependentes, ou seja, o intervalo de dados y.<\/li>\n
  • valores_conhecidos_x<\/strong> – o conjunto de dados independentes, ou seja, o intervalo de dados x.<\/li>\n<\/ul>\n
    Exemplo de uso:<\/p>\n
    =PREVIS\u00c3O.LINEAR(10, {2, 3, 9, 15, 20}, {1, 2, 3, 4, 5})<\/code><\/pre>\n
    Neste exemplo, a fun\u00e7\u00e3o estima o valor y para x=10 baseado na rela\u00e7\u00e3o linear formada pelos pares (1,2), (2,3), (3,9), (4,15), e (5,20).<\/p>\n
    Aplica\u00e7\u00f5es Pr\u00e1ticas<\/h2>\n
    Previs\u00e3o de Vendas<\/h3>\n
    Imagine uma empresa que deseja prever suas vendas futuras com base em dados de vendas dos \u00faltimos 5 anos. Os anos s\u00e3o representados por x e as vendas por y.<\/p>\n
    Ano (x) = {2018, 2019, 2020, 2021, 2022} Vendas (y) = {120, 150, 130, 160, 180}<\/code><\/pre>\n
    Para prever as vendas em 2023, pode-se calcular:<\/p>\n
    =PREVIS\u00c3O.LINEAR(2023, {120, 150, 130, 160, 180}, {2018, 2019, 2020, 2021, 2022})<\/code><\/pre>\n
    Este c\u00e1lculo estimar\u00e1 as vendas para 2023 baseando-se na tend\u00eancia linear observada nos anos anteriores.<\/p>\n
    Estimativa de Crescimento Populacional<\/h3>\n
    Se um munic\u00edpio deseja estimar o crescimento populacional para o pr\u00f3ximo ano utilizando dados dos \u00faltimos seis anos, o procedimento \u00e9 similar:<\/p>\n
    Ano (x) = {2015, 2016, 2017, 2018, 2019, 2020} Popula\u00e7\u00e3o (y) = {1050, 1075, 1100, 1125, 1150, 1175}<\/code><\/pre>\n
    Para calcular a estimativa para 2021, usa-se:<\/p>\n
    =PREVIS\u00c3O.LINEAR(2021, {1050, 1075, 1100, 1125, 1150, 1175}, {2015, 2016, 2017, 2018, 2019, 2020})<\/code><\/pre>\n
    Este c\u00e1lculo auxilia o planejamento municipal para futuras necessidades de infraestrutura, baseando-se no crescimento populacional estimado.<\/p>\n
    Esses exemplos ilustram a versatilidade e potencial da fun\u00e7\u00e3o PREVIS\u00c3O.LINEAR no apoio \u00e0 tomada de decis\u00f5es fundamentadas em an\u00e1lises de dados passados.<\/p>\n","protected":false},"excerpt":{"rendered":"
    Devolve um valor futuro com base em valores existentes<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[442],"tags":[],"class_list":["post-10902","post","type-post","status-publish","format-standard","hentry","category-estatistica"],"acf":[],"yoast_head":"\nFun\u00e7\u00e3o FORECAST.LINEAR (PREVIS\u00c3O.LINEAR) no Excel \u2013 como funciona, exemplos e sintaxe<\/title>\n<meta name=\"description\" content=\"Breve descri\u00e7\u00e3o da fun\u00e7\u00e3o FORECAST.LINEAR (PREVIS\u00c3O.LINEAR) do Excel. 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