askYesNo
Ask a Yes/No Question

### Description

Asks a yes/no question. Returns TRUE for yes, FALSE for no, and NA if the operation is cancelled.

### Usage

    askYesNo(msg, default = TRUE,
        prompts = getOption("askYesNo", gettext(c("Yes", "No", "Cancel"))), ...)

### Arguments

msg | a character string. The message being asked. Required.
default | the default value if no response is provided.
prompts | the allowed response values. These values are partially matched and the case is ignored.
... | currently ignored.

### Details

The values of prompts are displayed after the msg, with the default value of the prompt starting with upper-case characters. The other prompt values are shown in lower case.
Value
returns a logical value or NA, depending on the response entered.
Examples

    ## Not run:
    a <- askYesNo("Select one")
    b <- askYesNo("Select one", default=FALSE)  # FALSE if no response is entered

    ## End(Not run)

Package utils version 6.1.5-18
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