Thes functions ares used to evaluate an
R command given as a string.
XSLParseEval is used as the implementation of the
It parses the string, evaluates the resulting
expression and converts the result back to XSL,
XSLNULLParseEval discards the return value from
evaluating the command. This avoids converting it to an XSL object.
to return the output from evaluating the command.
It ignores the return value and returns a single string
containing the output.
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the string giving the S command or expression.
the class to assign to the result of the expression, if it has none. This is used in conjunction with
a logical value indicating whether to attempt to
the result of evaluating the expression to XML using the
if specified, the result of the expression is assigned to the R session's global environment using this value as its name. This allows the result to be used in subsequent computations.
the environment in which the evaluation of the parsed expression is performed.
The value of parsing and evaluating the S expression
cmd, optionally converted to an S object
giving the XML representation if
Duncan Temple Lang
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