checkRd: (7) zeeman.Rd:40: \item in \describe must have non-empty label
checkRd: (7) zeeman.Rd:41: \item in \describe must have non-empty label
checkRd: (7) zeeman.Rd:42: \item in \describe must have non-empty label
checkRd: (7) zeeman.Rd:40: \item in \describe must have non-empty label
checkRd: (7) zeeman.Rd:41: \item in \describe must have non-empty label
checkRd: (7) zeeman.Rd:42: \item in \describe must have non-empty label
checkRd: (7) zeeman.Rd:40: \item in \describe must have non-empty label
checkRd: (7) zeeman.Rd:41: \item in \describe must have non-empty label
checkRd: (7) zeeman.Rd:42: \item in \describe must have non-empty label
File ‘cusp/libs/cusp.so’:
  Found no calls to: ‘R_registerRoutines’, ‘R_useDynamicSymbols’

It is good practice to register native routines and to disable symbol
search.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual.
Running examples in ‘cusp-Ex.R’ failed
The error most likely occurred in:

> ### Name: predict.cusp
> ### Title: Predict method for Cusp Model Fits
> ### Aliases: predict.cusp
> 
> ### ** Examples
> 
> set.seed(123)
> # example with regressors
> x1 = runif(150)
> x2 = runif(150)
> z = Vectorize(rcusp)(1, 4*x1-2, 4*x2-1)
> data <- data.frame(x1, x2, z)
> fit <- cusp(y ~ z, alpha ~ x1+x2, beta ~ x1+x2, data)
> 
> newdata = data.frame(x1 = runif(10), x2 = runif(10), z = 0)
> predict(fit, newdata)
Error in se.fit || interval != "none" : 
  'length = 3' in coercion to 'logical(1)'
Calls: predict -> predict.cusp
Execution halted
checkRd: (7) zeeman.Rd:40: \item in \describe must have non-empty label
checkRd: (7) zeeman.Rd:41: \item in \describe must have non-empty label
checkRd: (7) zeeman.Rd:42: \item in \describe must have non-empty label
File ‘cusp/libs/cusp.so’:
  Found no calls to: ‘R_registerRoutines’, ‘R_useDynamicSymbols’

It is good practice to register native routines and to disable symbol
search.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual.
Running examples in ‘cusp-Ex.R’ failed
The error most likely occurred in:

> ### Name: predict.cusp
> ### Title: Predict method for Cusp Model Fits
> ### Aliases: predict.cusp
> 
> ### ** Examples
> 
> set.seed(123)
> # example with regressors
> x1 = runif(150)
> x2 = runif(150)
> z = Vectorize(rcusp)(1, 4*x1-2, 4*x2-1)
> data <- data.frame(x1, x2, z)
> fit <- cusp(y ~ z, alpha ~ x1+x2, beta ~ x1+x2, data)
> 
> newdata = data.frame(x1 = runif(10), x2 = runif(10), z = 0)
> predict(fit, newdata)
Error in se.fit || interval != "none" : 
  'length = 3' in coercion to 'logical(1)'
Calls: predict -> predict.cusp
Execution halted
checkRd: (7) zeeman.Rd:40: \item in \describe must have non-empty label
checkRd: (7) zeeman.Rd:41: \item in \describe must have non-empty label
checkRd: (7) zeeman.Rd:42: \item in \describe must have non-empty label
Error(s) in re-building vignettes:
--- re-building ‘Cusp-JSS.Rnw’ using Sweave
--- finished re-building ‘Cusp-JSS.Rnw’

--- re-building ‘cusp-hands-on-examples.Rnw’ using Sweave
Warning in model.matrix.default(mt, mf, contrasts) :
  non-list contrasts argument ignored
Warning in model.matrix.default(mta, mfa, contrasts) :
  non-list contrasts argument ignored
Warning in model.matrix.default(mtb, mfb, contrasts) :
  non-list contrasts argument ignored
Loading required package: plot3D
tcltk DLL is linked to '/opt/R/arm64/lib/libtk8.6.dylib'
Error: package or namespace load failed for ‘plot3D’:
 .onLoad failed in loadNamespace() for 'tcltk', details:
  call: fun(libname, pkgname)
  error: Tcl/Tk libraries are missing: install the Tcl/Tk component from the R installer
Loading required package: plot3D
tcltk DLL is linked to '/opt/R/arm64/lib/libtk8.6.dylib'
Error: package or namespace load failed for ‘plot3D’:
 .onLoad failed in loadNamespace() for 'tcltk', details:
  call: fun(libname, pkgname)
  error: Tcl/Tk libraries are missing: install the Tcl/Tk component from the R installer
Error: processing vignette 'cusp-hands-on-examples.Rnw' failed with diagnostics:
Running 'texi2dvi' on 'cusp-hands-on-examples.tex' failed.
LaTeX errors:
!pdfTeX error: pdflatex (file /Volumes/Builds/packages/big-sur-arm64/results/4.
2/cusp.Rcheck/vign_test/cusp/vignettes/cusp-hands-on-examples-fig1.pdf): PDF in
clusion: required page does not exist <0>
 ==> Fatal error occurred, no output PDF file produced!
--- failed re-building ‘cusp-hands-on-examples.Rnw’

SUMMARY: processing the following file failed:
  ‘cusp-hands-on-examples.Rnw’

Error: Vignette re-building failed.
Execution halted