在引号内读取r中的文本

I am trying to read a loaded variable within quotations in r.

我试图读取r中引号内的加载变量。

criterion1 <- colnames(Test1[9])
dlgInput(message = "Input Criterion for "criterion1"")$res

This is currently what I was trying but it does not work. I want the input box to have the column name at the specified location. I was wondering if there is any way for r to read and pull from the variable within the quotations.

这是我正在尝试的,但它不起作用。我希望输入框在指定位置具有列名称。我想知道r是否有任何方法可以读取和引用引号中的变量。

I would like the input box to read "Input Criterion for 'contents within criterion1'"

我希望输入框中的内容为“标准1中'内容的输入标准'”

Thanks

1 个解决方案

#1

I like these four ways, which produce Input Criterion for 'am'.

我喜欢这四种方式,它们为'am'产生输入标准。

criterion1 <- colnames(mtcars)[9]

str1 <- paste0("Input Criterion for '", criterion1, "'.")
str2 <- sprintf("Input Criterion for '%s'", criterion1)
str3 <- glue::glue("Input Criterion for '{column_name}'", column_name=criterion1)
str4 <- glue::glue("Input Criterion for '{criterion1}'")

In future posts, consider using a dataset that's easily accessible by everyone, and stripping out things that are an unnecessary to your core question, like the dlgInput() and the $res are here (assuming I'm understanding correctly now).

在以后的帖子中,考虑使用每个人都可以轻松访问的数据集,并删除对核心问题不必要的内容,例如dlgInput()和$ res在这里(假设我现在正确理解)。

Original response

either escape the double quote (str1), or enclose with single quotes (str2).

要么转义双引号(str1),要么用单引号(str2)括起来。

str1 <- "Input Criterion for \"criterion1\""
str2 <- 'Input Criterion for \"criterion1\"'

result:

> cat(str1)
Input Criterion for "criterion1"
> cat(str2)
Input Criterion for "criterion1"

I'm surprised there's not a duplicate hit on SO for "[r] escape quote"

我很惊讶,因为“[r]逃避报价”而没有重复报道