问题描述
我在使用 R 中的 startsWith
函数时遇到了一些问题。
library(data.table)
library(gdata)
help.search("startsWith");
print(startsWith("test","t"));
我也尝试使用 gdata::startsWith("test","t")
或 gdata:::startsWith("test","t")
但什么都没有改变。
我得到的错误如下:
Error in get(name,envir = ns,inherits = FALSE) :
oggetto "startsWith" non trovato
Calls: print -> <Anonymous> -> :: -> getExportedValue -> get
gdata: read.xls support for 'XLS' (Excel 97-2004) files ENABLED.
gdata: read.xls support for 'XLSX' (Excel 2007+) files ENABLED.
Attaching package: ‘gdata’
The following objects are masked from ‘package:data.table’:
first,last
The following object is masked from ‘package:stats’:
nobs
The following object is masked from ‘package:utils’:
object.size
Help files with alias or concept or title matching ‘startsWith’ using
fuzzy matching:
dplyr::reexports Objects exported from other packages
Aliases: starts_with
gdata::startsWith Determine if a character string "starts with"
with the specified characters.
Aliases: startsWith
tidyselect::select_helpers
Select helpers
Aliases: starts_with
Type '?PKG::FOO' to inspect entries 'PKG::FOO',or 'TYPE?PKG::FOO' for
entries like 'PKG::FOO-TYPE'.
您对如何解决这个问题有什么建议吗? (我已经尝试删除并再次安装该库)。
提前致谢。
解决方法
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