checkRd: (-1) nw_est.Rd:110: Escaped LaTeX specials: \&
Error(s) in re-building vignettes:
  ...
--- re-building 'Using_causaldrf.Rnw' using knitr
Error: processing vignette 'Using_causaldrf.Rnw' failed with diagnostics:
Running 'texi2dvi' on 'Using_causaldrf.tex' failed.
LaTeX errors:
! Argument of Â has an extra }.
<inserted text> 
                \par 
l.145 \section{Introduction}
                            
! Emergency stop.
<inserted text> 
                \par 
l.145 \section{Introduction}
                            
!  ==> Fatal error occurred, no output PDF file produced!
--- failed re-building 'Using_causaldrf.Rnw'

SUMMARY: processing the following file failed:
  'Using_causaldrf.Rnw'

Error: Vignette re-building failed.
Execution halted
checkRd: (-1) nw_est.Rd:110: Escaped LaTeX specials: \&
Error(s) in re-building vignettes:
  ...
--- re-building ‘Using_causaldrf.Rnw’ using knitr
Error: processing vignette ‘Using_causaldrf.Rnw’ failed with diagnostics:
Running ‘texi2dvi’ on ‘Using_causaldrf.tex’ failed.
LaTeX errors:
! Argument of <c2> has an extra }.
<inserted text> 
                \par 
l.145 \section{Introduction}
                            
! Emergency stop.
<inserted text> 
                \par 
l.145 \section{Introduction}
                            
!  ==> Fatal error occurred, no output PDF file produced!
--- failed re-building ‘Using_causaldrf.Rnw’

SUMMARY: processing the following file failed:
  ‘Using_causaldrf.Rnw’

Error: Vignette re-building failed.
Execution halted
checkRd: (-1) nw_est.Rd:110: Escaped LaTeX specials: \&
checkRd: (-1) nw_est.Rd:110: Escaped LaTeX specials: \&
checkRd: (-1) nw_est.Rd:110: Escaped LaTeX specials: \&
Error(s) in re-building vignettes:
  ...
--- re-building ‘Using_causaldrf.Rnw’ using knitr
Error: processing vignette ‘Using_causaldrf.Rnw’ failed with diagnostics:
Running ‘texi2dvi’ on ‘Using_causaldrf.tex’ failed.
LaTeX errors:
! Argument of <c2> has an extra }.
<inserted text> 
                \par 
l.145 \section{Introduction}
                            
! Emergency stop.
<inserted text> 
                \par 
l.145 \section{Introduction}
                            
!  ==> Fatal error occurred, no output PDF file produced!
--- failed re-building ‘Using_causaldrf.Rnw’

SUMMARY: processing the following file failed:
  ‘Using_causaldrf.Rnw’

Error: Vignette re-building failed.
Execution halted
Error(s) in re-building vignettes:
  ...
--- re-building ‘Using_causaldrf.Rnw’ using knitr
Error: processing vignette ‘Using_causaldrf.Rnw’ failed with diagnostics:
Running ‘texi2dvi’ on ‘Using_causaldrf.tex’ failed.
LaTeX errors:
! Argument of <c2> has an extra }.
<inserted text> 
                \par 
l.145 \section{Introduction}
                            
! Emergency stop.
<inserted text> 
                \par 
l.145 \section{Introduction}
                            
!  ==> Fatal error occurred, no output PDF file produced!
--- failed re-building ‘Using_causaldrf.Rnw’

SUMMARY: processing the following file failed:
  ‘Using_causaldrf.Rnw’

Error: Vignette re-building failed.
Execution halted