whether single- or triple-quoted, result in a newline (LF) character \n in the string, even if your editor uses a carriage return \r (CR) or CRLF combination to end lines. To include a CR in a string, use missing object, which is the singleton instance of the type Missing. missing is equivalent to NULL in SQL and NA in R, and behaves like them in most situations. 20.1 Propagation of Missing Values missing This follows the well-established rules of three-valued logic which are implemented by e.g. NULL in SQL and NA in R. This abstract definition corresponds to a relatively natural behavior which is best explained

whether single- or triple-quoted, result in a newline (LF) character \n in the string, even if your editor uses a carriage return \r (CR) or CRLF combination to end lines. To include a CR in a string, use missing object, which is the singleton instance of the type Missing. missing is equivalent to NULL in SQL and NA in R, and behaves like them in most situations. 20.1 Propagation of Missing Values missing This follows the well-established rules of three-valued logic which are implemented by e.g. NULL in SQL and NA in R. This abstract definition corresponds to a relatively natural behavior which is best explained

whether single- or triple-quoted, result in a newline (LF) character \n in the string, even if your editor uses a carriage return \r (CR) or CRLF combination to end lines. To include a CR in a string, use missing object, which is the singleton instance of the type Missing. missing is equivalent to NULL in SQL and NA in R, and behaves like them in most situations. 21.1 Propagation of Missing Values missing This follows the well-established rules of three-valued logic which are implemented by e.g. NULL in SQL and NA in R. This abstract definition corresponds to a relatively natural behavior which is best explained

whether single- or triple-quoted, result in a newline (LF) character \n in the string, even if your editor uses a carriage return \r (CR) or CRLF combination to end lines. To include a CR in a string, use missing object, which is the singleton instance of the type Missing. missing is equivalent to NULL in SQL and NA in R, and behaves like them in most situations. 21.1 Propagation of Missing Values missing This follows the well-established rules of three-valued logic which are implemented by e.g. NULL in SQL and NA in R. This abstract definition corresponds to a relatively natural behavior which is best explained

whether single- or triple-quoted, result in a newline (LF) character \n in the string, even if your editor uses a carriage return \r (CR) or CRLF combination to end lines. To include a CR in a string, use missing object, which is the singleton instance of the type Missing. missing is equivalent to NULL in SQL and NA in R, and behaves like them in most situations. 21.1 Propagation of Missing Values missing This follows the well-established rules of three-valued logic which are implemented by e.g. NULL in SQL and NA in R. This abstract definition corresponds to a relatively natural behavior which is best explained

whether single- or triple-quoted, result in a newline (LF) character \n in the string, even if your editor uses a carriage return \r (CR) or CRLF combination to end lines. To include a CR in a string, use missing object, which is the singleton instance of the type Missing. missing is equivalent to NULL in SQL and NA in R, and behaves like them in most situations. 21.1 Propagation of Missing Values missing This follows the well-established rules of three-valued logic which are implemented by e.g. NULL in SQL and NA in R. This abstract definition corresponds to a relatively natural behavior which is best explained

whether single- or triple-quoted, result in a newline (LF) character \n in the string, even if your editor uses a carriage return \r (CR) or CRLF combination to end lines. To include a CR in a string, use missing object, which is the singleton instance of the type Missing. missing is equivalent to NULL in SQL and NA in R, and behaves like them in most situations. 21.1 Propagation of Missing Values missing This follows the well-established rules of three-valued logic which are implemented by e.g. NULL in SQL and NA in R. This abstract definition corresponds to a relatively natural behavior which is best explained

whether single- or triple-quoted, result in a newline (LF) character \n in the string, even if your editor uses a carriage return \r (CR) or CRLF combination to end lines. To include a CR in a string, use missing object, which is the singleton instance of the type Missing. missing is equivalent to NULL in SQL and NA in R, and behaves like them in most situations. 21.1 Propagation of Missing Values missing This follows the well-established rules of three-valued logic which are implemented by e.g. NULL in SQL and NA in R. This abstract definition corresponds to a relatively natural behavior which is best explained

whether single- or triple-quoted, result in a newline (LF) character \n in the string, even if your editor uses a carriage return \r (CR) or CRLF combination to end lines. To include a CR in a string, use missing object, which is the singleton instance of the type Missing. missing is equivalent to NULL in SQL and NA in R, and behaves like them in most situations. 21.1 Propagation of Missing Values missing This follows the well-established rules of three-valued logic which are implemented by e.g. NULL in SQL and NA in R. This abstract definition corresponds to a relatively natural behavior which is best explained

whether single- or triple-quoted, result in a newline (LF) character \n in the string, even if your editor uses a carriage return \r (CR) or CRLF combination to end lines. To include a CR in a string, use missing object, which is the singleton instance of the type Missing. missing is equivalent to NULL in SQL and NA in R, and behaves like them in most situations. 21.1 Propagation of Missing Values missing This follows the well-established rules of three-valued logic which are implemented by e.g. NULL in SQL and NA in R. This abstract definition corresponds to a relatively natural behavior which is best explained