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elementwise versions of unary functions #347

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elementwise versions of unary functions#347
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rayleighbob-carpenter
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feature
Milestone
2.13.0

Description

@bob-carpenter
bob-carpenter
opened on Aug 14, 2016

Summary:

There are functions like log2() and log1p() that are still not vectorized for elementwise application to containers.

Description:

All of our unary functions should be vectorized. Review the index of the manual and make sure every unary function is vectorized. Here are the ones for this issue:

  • acosh
  • asinh
  • atanh
  • exp2
  • log1m_inv_logit
  • log1p
  • log2
  • log_inv_logit
  • logit
  • Phi_approx
  • trigamma
  • trunc

Current Version:

v2.11.0

Activity

  1. bob-carpenter
    added
    feature
    on Aug 14, 2016
  2. bob-carpenter
    added this to the milestone on Aug 14, 2016

  3. bob-carpenter commented on Aug 18, 2016

    @bob-carpenter
    bob-carpenter
    on Aug 18, 2016
    MemberAuthor

    See #202, which was only partially completed.

  4. bob-carpenter
    assigned
    bob-carpenter
    and
    rayleigh
    on Aug 18, 2016

  5. bob-carpenter commented on Aug 18, 2016

    @bob-carpenter
    bob-carpenter
    on Aug 18, 2016
    MemberAuthor

    See also #272 for logit() and #271 for log1m_inv_logit

  6. bob-carpenter
    modified the milestones: Future, , on Aug 18, 2016

  7. bob-carpenter commented on Aug 28, 2016

    @bob-carpenter
    bob-carpenter
    on Aug 28, 2016
    MemberAuthor

    This was blocked before due to ambiguous functions. It's fixed with a judicious application of namespace qualifications and Boost enable_if and disable_if qualifications. Now that I have log1p working I should be able to knock off the rest in no time. It will not require reverse-mode specializations as suggested in #272 and #271 (now closed).

  8. bob-carpenter
    modified the milestones: , on Aug 28, 2016
  9. bob-carpenter
    changed the title [-]vectorizing remaining unary functions[/-] [+]elementwise versions of unary functions[/+] on Aug 29, 2016
  10. syclik
    modified the milestones: , on Sep 7, 2016
  11. syclik
    closed this as completedin 45bc548on Oct 16, 2016

  12. MatsuuraKentaro commented on Oct 18, 2017

    @MatsuuraKentaro
    MatsuuraKentaro
    on Oct 18, 2017

    Stan manual v2.17 says pow is not vectorized yet. Do you have a plan?

  13. bob-carpenter commented on Oct 19, 2017

    @bob-carpenter
    bob-carpenter
    on Oct 19, 2017 via email
    MemberAuthor
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