print.chunkwise: no visible global function definition for 'trunc_mat'
Undefined global functions or variables:
  trunc_mat
'LazyData' is specified without a 'data' directory
print.chunkwise: no visible global function definition for ‘trunc_mat’
Undefined global functions or variables:
  trunc_mat
'LazyData' is specified without a 'data' directory
print.chunkwise: no visible global function definition for ‘trunc_mat’
Undefined global functions or variables:
  trunc_mat
'LazyData' is specified without a 'data' directory
print.chunkwise: no visible global function definition for ‘trunc_mat’
Undefined global functions or variables:
  trunc_mat
'LazyData' is specified without a 'data' directory
print.chunkwise: no visible global function definition for 'trunc_mat'
Undefined global functions or variables:
  trunc_mat
'LazyData' is specified without a 'data' directory
print.chunkwise: no visible global function definition for 'trunc_mat'
Undefined global functions or variables:
  trunc_mat
'LazyData' is specified without a 'data' directory
print.chunkwise: no visible global function definition for ‘trunc_mat’
Undefined global functions or variables:
  trunc_mat
'LazyData' is specified without a 'data' directory
print.chunkwise: no visible global function definition for ‘trunc_mat’
Undefined global functions or variables:
  trunc_mat
'LazyData' is specified without a 'data' directory
'LazyData' is specified without a 'data' directory
'LazyData' is specified without a 'data' directory
print.chunkwise: no visible global function definition for 'trunc_mat'
Undefined global functions or variables:
  trunc_mat
'LazyData' is specified without a 'data' directory
print.chunkwise: no visible global function definition for 'trunc_mat'
Undefined global functions or variables:
  trunc_mat