{"Package":"rnbp","Title":"Wrapper for the National Bank of Poland API","Version":"0.2.2","Authors@R":"person(given = \"Ryszard\",\nfamily = \"Szymanski\",\nrole = c(\"aut\", \"cre\"),\nemail = \"ryszard.szymanski@outlook.com\")","Maintainer":"Ryszard Szymanski ","Description":"Use the API through R. Retrieve\ncurrency exchange rates and gold prices data published by the\nNational Bank of Poland in form of convenient R objects.","License":"GPL-3","BugReports":"https://github.com/szymanskir/rnbp/issues","Encoding":"UTF-8","Imports":"curl, httr, jsonlite, utils","Suggests":"covr, httptest, testthat (>= 2.1.0), knitr, rmarkdown,\nggplot2","RoxygenNote":"7.3.2","VignetteBuilder":"knitr","URL":"https://github.com/szymanskir/rnbp","NeedsCompilation":"no","Packaged":"2025-03-23 20:28:56 UTC; Rysza","Author":"Ryszard Szymanski [aut, cre]","Repository":"CRAN","Date/Publication":"2025-03-23 20:40:02 UTC","repoType":"cran","tarballUrl":"ftp://cran.r-project.org/pub/R/src/contrib/rnbp_0.2.2.tar.gz","jsonAuthors":[{"name":"Ryszard Szymanski","email":"ryszard.szymanski@outlook.com","maintainer":true}],"readme":"\n# rnbp\n\n\n\n[![R-CMD-check](https://github.com/szymanskir/rnbp/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/szymanskir/rnbp/actions/workflows/R-CMD-check.yaml)\n[![CRAN\nversion](https://www.r-pkg.org/badges/version/rnbp)](https://www.r-pkg.org/badges/version/rnbp)\n[![Cran total\ndownloads](https://cranlogs.r-pkg.org/badges/grand-total/rnbp)](https://cranlogs.r-pkg.org/badges/grand-total/rnbp)\n\n\nThe rnbp package is an R wrapper for the National Bank of Poland API:\n\n\n## Installation\n\nThe rnbp package is available on CRAN, you can install it with:\n\n``` r\ninstall.packages(\"rnbp\")\n```\n\nYou can install the the development version of rnbp from\n[GitHub](https://github.com/) with:\n\n``` r\n# install.packages(\"devtools\")\ndevtools::install_github(\"szymanskir/rnbp\")\n```\n\n## Retrieve the currently effective exchange rate table\n\n``` r\nlibrary(rnbp)\nlibrary(ggplot2)\n\n## Retrieve current C exchange rate table\nresponse <- get_current_exchangerate_table(\"C\")\n\n## Retrieve content from the response\ncurrent_exchangerate_table <- response$content$rates[[1]]\n\nggplot(current_exchangerate_table, aes(x = code, y = bid, fill = code)) +\n geom_bar(stat = \"identity\")\n```\n\n

\n\n## Retrieve exchange rates for specific currencies\n\n``` r\n## Retrieve last 20 exchange rates for euros\neuros_response <- get_last_n_exchangerates(\"A\", \"EUR\", 20)\n\n## Retrieve last 20 exchange rates for euros\ndollars_response <- get_last_n_exchangerates(\"A\", \"USD\", 20)\n\n## Retrieve rates data\neuros_data <- euros_response$content$rates\ndollars_data <- dollars_response$content$rates\n\n## Add currency code columns\neuros_data$code <- euros_response$content$code\ndollars_data$code <- dollars_response$content$code\ncurrency_data <- rbind(euros_data, dollars_data)\n\nggplot(currency_data, aes(x = effectiveDate, y = mid, col = code)) +\n geom_line() +\n geom_point()\n```\n\n

\n\n## Retrieve gold prices\n\n``` r\ncurrent_date <- Sys.Date()\nresponse <- get_goldprice_from_interval(current_date - 90, current_date)\n\nggplot(response$content, aes(x = data, y = cena)) +\n geom_point() +\n geom_line() +\n geom_smooth(method = \"loess\", formula = y ~ x)\n```\n\n

","jobInfo":{"package":"rnbp","version":"0.2.2","parsingStatus":"success","parserVersion":2,"parsedAt":"2025-03-23T21:30:09+0000"}}

Description

Usage

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