篩選特定國家
先前你已經學過如何篩選資料,找出在印尼發生的專案資訊。現在,你要建立一份報告,提供 investment_services_project 資料中另一個國家的相關資訊。在這個練習中,你會開始篩選資料,以彙整在巴西發生的專案。
本練習屬於課程
使用 R Markdown 製作報告
練習說明
- 在第 1 個程式碼區塊的第
9行、緊接在第8行的readr套件之後,載入dplyr套件。 - 在第 3 個程式碼區塊中,篩選
investment_services_projects資料,以找出哪些專案是在巴西發生。 - 將結果儲存為
brazil_investment_projects。 - 將該程式碼區塊標記為
brazil-investment-projects。
動手互動練習
試著完成這個範例程式碼,體驗一下這個練習。
{"investment_report.Rmd":"---\ntitle: \"Investment Report\"\ndate: \"`r format(Sys.time(), '%d %B %Y')`\"\noutput: html_document\n---\n\n```{r data, include = FALSE}\nlibrary(readr)\n\n\ninvestment_annual_summary <- read_csv(\"https://assets.datacamp.com/production/repositories/5756/datasets/d0251f26117bbcf0ea96ac276555b9003f4f7372/investment_annual_summary.csv\")\ninvestment_services_projects <- read_csv(\"https://assets.datacamp.com/production/repositories/5756/datasets/bcb2e39ecbe521f4b414a21e35f7b8b5c50aec64/investment_services_projects.csv\")\n```\n\n\n## Datasets \n\n### Investment Annual Summary\n\nThe `investment_annual_summary` dataset provides a summary of the dollars in millions provided to each region for each fiscal year, from 2012 to 2018.\n```{r investment-annual-summary}\ninvestment_annual_summary\n```\n\n### Investment Projects in Brazil\n\nThe `investment_services_projects` dataset provides information about each investment project from 2012 to 2018. Information listed includes the project name, company name, sector, project status, and investment amounts.\n```{r}\n___ <- investment_services_projects %>%\n ___\n\nbrazil_investment_projects\n```\n\n\n"}