check.1.integer | R Documentation |
These utility functions check whether a given argument is a single value of the required type.
check.1.real(x, context = "", fatal = TRUE, warn=TRUE)
check.1.integer(x, context = "", fatal = TRUE, warn=TRUE)
check.1.string(x, context = "", fatal = TRUE, warn=TRUE)
x |
The argument to be checked. |
context |
Optional string describing the context in which the argument is checked. |
fatal |
Logical value indicating whether a fatal error should occur when
|
warn |
Logical value indicating whether to issue a warning message
if |
These functions check whether the argument x
is a single
atomic value of type numeric
, integer
or
character
.
If x
does have the required length and type, the result
of the function is the logical value TRUE
.
Otherwise, if fatal=TRUE
(the default) an error occurs,
while if fatal=FALSE
a warning is issued (if warn=TRUE
)
and the function returns the value FALSE
.
A logical value (or an error may occur).
.
check.named.vector
x <- pi
check.1.real(x)
check.1.integer(pi, fatal=FALSE, context="In your dreams,")
check.1.string(x, fatal=FALSE)
check.1.integer(x, fatal=FALSE, warn=FALSE)
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