fixed coupla_defination.stan of zero_constrain

[yamikarajput546]

Please check the PR and merge the changes

[spinkney]

@yamikarajput546 thanks for these! Welcome and look forward to working with you

[yamikarajput546]

i've update the changes but i don't know why again the conflicts ? @spinkney please review it

[yamikarajput546]

I merged the other pr tada! And I fixed the merge conflicts with this one.

For this one:

• add those functions to separate .stanfunctions files and document
• we need the doxygen comments at the top and a description of the math. Look at https://github.com/spinkney/helpful_stan_functions/blob/main/functions/copula/normal_copula.stanfunctions how to do the LaTeX and documentation.
• rename the file correlation_angles_constrain_work.stan to just correlation_angles_constrain.stanfunctions

Thanks for that @spinkney i'll update as you mentioned like renamed and pushed the changes but as the workflow has failed so will try the doxygen comments

[spinkney]

I merged the other pr tada! And I fixed the merge conflicts with this one. For this one:

• add those functions to separate .stanfunctions files and document
• we need the doxygen comments at the top and a description of the math. Look at https://github.com/spinkney/helpful_stan_functions/blob/main/functions/copula/normal_copula.stanfunctions how to do the LaTeX and documentation.
• rename the file correlation_angles_constrain_work.stan to just correlation_angles_constrain.stanfunctions

Thanks for that @spinkney i'll update as you mentioned like renamed and pushed the changes but as the workflow has failed so will try the doxygen comments

Just tag me once you want a review. Thanks again!