[ ソース: r-cran-sqldf ]
パッケージ: r-cran-sqldf (0.4-11-2)
r-cran-sqldf に関するリンク
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r-cran-sqldf ソースパッケージをダウンロード:
メンテナ:
外部の資源:
- ホームページ [cran.r-project.org]
類似のパッケージ:
manipulate GNU R data frames using SQL
The sqldf() function is typically passed a single argument which is an SQL select statement where the table names are ordinary R data frame names. sqldf() transparently sets up a database, imports the data frames into that database, performs the SQL select or other statement and returns the result using a heuristic to determine which class to assign to each column of the returned data frame. The sqldf() or read.csv.sql() functions can also be used to read filtered files into R even if the original files are larger than R itself can handle. 'RSQLite', 'RH2', 'RMySQL' and 'RPostgreSQL' backends are supported.
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