isZERO: Test for constants
In nlsr: Functions for Nonlinear Least Squares Solutions - Updated 2022
isZERO R Documentation
Test for constants
Description
Test for the values 0, 1 or -1.
Used in newSimplification definitions.
Usage
isZERO(x)
isONE(x)
isMINUSONE(x)
Arguments
x
object to be tested
Value
Returns TRUE if the argument is the appropriate scalar value.
Examples
isZERO(0)
x <- quote(0*1)
isZERO(x) # This is `*`(0, 1), not a value
isZERO(eval(x))
x <- quote(-1)
isMINUSONE(x) # This is `-`(1), not a value
isMINUSONE(eval(x))
nlsr documentation built on Sept. 8, 2023, 5:48 p.m.
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| isZERO | R Documentation |
Test for constants
Description
Test for the values 0, 1 or -1.
Used in newSimplification definitions.
Usage
isZERO(x)
isONE(x)
isMINUSONE(x)
Arguments
x |
object to be tested |
Value
Returns TRUE if the argument is the appropriate scalar value.
Examples
isZERO(0)
x <- quote(0*1)
isZERO(x) # This is `*`(0, 1), not a value
isZERO(eval(x))
x <- quote(-1)
isMINUSONE(x) # This is `-`(1), not a value
isMINUSONE(eval(x))
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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