![]() The function depends on functionality from the scripting language perl, and therefore it requires perl ( ) to be installed. Second, Excel files can be accessed using the read.xls() function available in the gdata package. The package allows for the general manipulation of Excel files and the production of Excel reports with graphics without the need for Excel to be installed. ![]() First, Excel files can be accessed using the loadWorkbook() and readWorksheet() functions available in the XLConnect package. Alternatively, there are at least three packages that allow Excel files to be accessed directly. Arguably the simplest is to save a spreadsheet as a comma or tab separated file, then to import the data into R using the read.table() or read.csv() functions. Spreadsheets are a common method for distributing data, and R provides several methods for accessing spreadsheet data.
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