methods to manipulate domain of `tf`

tidyfun / tf

S3 classes and methods for tidy functional data

https://tidyfun.github.io/tf/

GNU Affero General Public License v3.0

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Closed fabian-s closed 6 months ago

fabian-s commented 5 years ago

add domain<-() and move() to shift/modify domain of a tf

fabian-s commented 2 years ago

Use cases for functions modifying arg-vecs:

changing the units of the arguments (e.g. seconds after 00:00 to hours after 00:00, see tidyfun/tf#2)
registration methods: different (nonlinear) transforms for arg-vec of each tf-element

(these need to automatically adapt domain as well.)

fabian-s commented 2 years ago

Use cases for changing domain:

make extrapolation possible
restore original domains after differentiating (which shortens domains. would be useless (?) without also changing evaluator function for derivs to something that extrapolates....)
concatenate different tfd|b with unequal domains (seems dangerous - don't do this automatically)

fabian-s commented 2 years ago

this might be done? see #2

fabian-s commented 6 months ago

[x] tf_domain<- lets you overwrite the functions' domains
[x] tf_arg<- overwrites arg-values (and checks that they are compatible with object class)