LaTeX errors when creating PDF version.
This typically indicates Rd problems.
LaTeX errors found:
! Undefined control sequence.
<argument> \psi =\mathsf {vec}(\Psi )\in \mathbb 
                                                 {R}^{ML}
l.119 ...i=\mathsf{vec}(\Psi)\in\mathbb{R}^{ML}}{}
                                                   for the functional penali...
! Undefined control sequence.
<argument> \Psi \in \mathbb 
                            {R}^{M\times L}
l.119 ...rix \eqn{\Psi\in\mathbb{R}^{M\times L}}{}
                                                  ,
! Undefined control sequence.
<argument> \psi (t,s)=\varphi (t)^\intercal 
                                            \Psi \theta (s)
l.120 ...t,s)=\varphi(t)^\intercal\Psi\theta(s)}{}
                                                  ,
! Undefined control sequence.
<argument> S_g\in \mathbb 
                          {R}^{d\times ML}
l.122 ...rix \eqn{S_g\in\mathbb{R}^{d\times ML}}{}
                                                   has non-zero entries only...
! Undefined control sequence.
<argument> T\in \mathbb 
                        {R}^{ML\times ML}
l.124 ...trix \eqn{T\in\mathbb{R}^{ML\times ML}}{}
                                                   contains
! Undefined control sequence.
<argument> \psi =\mathsf {vec}(\Psi )\in \mathbb 
                                                 {R}^{ML}
l.323 ...i=\mathsf{vec}(\Psi)\in\mathbb{R}^{ML}}{}
                                                   for the functional penali...
! Undefined control sequence.
<argument> \Psi \in \mathbb 
                            {R}^{M\times L}
l.323 ...rix \eqn{\Psi\in\mathbb{R}^{M\times L}}{}
                                                  ,
! Undefined control sequence.
<argument> \psi (t,s)=\varphi (t)^\intercal 
                                            \Psi \theta (s)
l.324 ...t,s)=\varphi(t)^\intercal\Psi\theta(s)}{}
                                                  ,
! Undefined control sequence.
<argument> S_g\in \mathbb 
                          {R}^{d\times ML}
l.326 ...rix \eqn{S_g\in\mathbb{R}^{d\times ML}}{}
                                                   has non-zero entries only...
! Undefined control sequence.
<argument> T\in \mathbb 
                        {R}^{ML\times ML}
l.328 ...trix \eqn{T\in\mathbb{R}^{ML\times ML}}{}
                                                   contains
! Undefined control sequence.
<argument> ...nt x_i(t) \psi (t) dt-z_i^\intercal 
                                                  \gamma \right )^2 + \lambd...
l.529 ...sum_{g=1}^{G} \Vert S_{g}T\psi \Vert_2}{}
                                                  
! Undefined control sequence.
<argument> \psi \in \mathbb 
                            {R}^{M}
l.530 ...ient vector \eqn{\psi\in\mathbb{R}^{M}}{}
                                                   for the functional penali...
! Undefined control sequence.
<argument> \gamma \in \mathbb 
                              {R}^q
l.530 ...ient vector \eqn{\gamma\in\mathbb{R}^q}{}
                                                   for the unpenalized scala...
! Undefined control sequence.
<argument> \psi (t)=\varphi (t)^\intercal 
                                          \psi 
l.530 ... \eqn{\psi(t)=\varphi(t)^\intercal\psi}{}
                                                  
! Undefined control sequence.
<argument> S_g\in \mathbb 
                          {R}^{d\times M}
l.532 ...trix \eqn{S_g\in\mathbb{R}^{d\times M}}{}
                                                   has non-zero entries only...
! Undefined control sequence.
<argument> T\in \mathbb 
                        {R}^{M\times M}
l.534 ...matrix \eqn{T\in\mathbb{R}^{M\times M}}{}
                                                   contains
! Undefined control sequence.
<argument> ...nt x_i(t) \psi (t) dt-z_i^\intercal 
                                                  \gamma \right )^2 + \lambd...
l.721 ...sum_{g=1}^{G} \Vert S_{g}T\psi \Vert_2}{}
                                                  
! Undefined control sequence.
<argument> \psi \in \mathbb 
                            {R}^{M}
l.722 ...ient vector \eqn{\psi\in\mathbb{R}^{M}}{}
                                                   for the functional penali...
! Undefined control sequence.
<argument> \gamma \in \mathbb 
                              {R}^q
l.722 ...ient vector \eqn{\gamma\in\mathbb{R}^q}{}
                                                   for the unpenalized scala...
! Undefined control sequence.
<argument> \psi (t)=\varphi (t)^\intercal 
                                          \psi 
l.722 ... \eqn{\psi(t)=\varphi(t)^\intercal\psi}{}
                                                  
! Undefined control sequence.
<argument> S_g\in \mathbb 
                          {R}^{d\times M}
l.724 ...trix \eqn{S_g\in\mathbb{R}^{d\times M}}{}
                                                   has non-zero entries only...
! Undefined control sequence.
<argument> T\in \mathbb 
                        {R}^{M\times M}
l.726 ...matrix \eqn{T\in\mathbb{R}^{M\times M}}{}
                                                   contains
! Undefined control sequence.
<argument> \beta \in \mathbb 
                             {R}^p
l.928 ...cient vector \eqn{\beta\in\mathbb{R}^p}{}
                                                   for the matrix of penaliz...
! Undefined control sequence.
<argument> \gamma \in \mathbb 
                              {R}^q
l.928 ...ient vector \eqn{\gamma\in\mathbb{R}^q}{}
                                                  
! Undefined control sequence.
<argument> S_g\in \mathbb 
                          {R}^{n_g\times p}
l.930 ...ix \eqn{S_g\in\mathbb{R}^{n_g\times p}}{}
                                                   has non-zero entries only...
! Undefined control sequence.
<argument> T\in \mathbb 
                        {R}^{p\times p}
l.932 ...matrix \eqn{T\in\mathbb{R}^{p\times p}}{}
                                                   contains the variable-spe...
! Undefined control sequence.
<argument> T_1\in \mathbb 
                          {R}^{p\times p}
l.933 ...trix \eqn{T_1\in\mathbb{R}^{p\times p}}{}
                                                   contains
! Undefined control sequence.
<argument> \beta \in \mathbb 
                             {R}^p
l.1193 ...ient vector \eqn{\beta\in\mathbb{R}^p}{}
                                                   for the matrix of penaliz...
! Undefined control sequence.
<argument> \gamma \in \mathbb 
                              {R}^q
l.1193 ...ent vector \eqn{\gamma\in\mathbb{R}^q}{}
                                                  
! Undefined control sequence.
<argument> S_g\in \mathbb 
                          {R}^{n_g\times p}
l.1195 ...x \eqn{S_g\in\mathbb{R}^{n_g\times p}}{}
                                                   has non-zero entries only...
! Undefined control sequence.
<argument> T\in \mathbb 
                        {R}^{p\times p}
l.1197 ...atrix \eqn{T\in\mathbb{R}^{p\times p}}{}
                                                   contains the variable-spe...
! Undefined control sequence.
<argument> T_1\in \mathbb 
                          {R}^{p\times p}
l.1198 ...rix \eqn{T_1\in\mathbb{R}^{p\times p}}{}
                                                   contains