"xifti" or pair of "xifti"s.Apply a univariate transformation to each value in a "xifti" or pair of
"xifti"s. If a pair, they must share the same dimensions (brainstructures)
and number of measurements.
transform_xifti(xifti, FUN, xifti2 = NULL, ...)# S3 method for xifti
+(xifti, xifti2)
# S3 method for xifti
-(xifti, xifti2)
# S3 method for xifti
*(xifti, xifti2)
# S3 method for xifti
^(xifti, xifti2)
# S3 method for xifti
%%(xifti, xifti2)
# S3 method for xifti
%/%(xifti, xifti2)
# S3 method for xifti
/(xifti, xifti2)
# S3 method for xifti
abs(x)
# S3 method for xifti
sign(x)
# S3 method for xifti
sqrt(x)
# S3 method for xifti
floor(x)
# S3 method for xifti
ceiling(x)
# S3 method for xifti
round(x, digits = 0)
# S3 method for xifti
exp(x)
# S3 method for xifti
log(x, base = exp(1))
The xifti
The function. If xifti2 is not provided, it should be
a univariate function like log or sqrt. If
xifti2 is provided, it should take in two arguments, like `+`
or pmax.
The second xifti, if applicable. Otherwise, NULL (default)
Additional arguments to FUN
The "xifti"
The number of digits to round by
The log base
A "xifti" storing the result of applying FUN to the input(s).
The data dimensions will be the same. The metadata of xifti will be retained,
and the metadata of xifti2 will be discarded (if provided).
If the "xifti" had the dlabel intent, and the transformation creates
any value that is not a label value (e.g. a non-integer), then it is converted
to a dscalar.
Other functions for manipulating `xifti` objects:
add_surf(),
apply_xifti(),
combine_xifti(),
convert_to_dlabel(),
merge_xifti(),
newdata_xifti(),
remove_xifti(),
select_xifti()