Example messages
print('this is a print')
## [1] "this is a print"
cat('this is a cat\n')
## this is a cat
message('this is a message')
## this is a message
stop('this is an error')
## Error: this is an error
warning('this is a warning')
## Warning: this is a warning
print('this is a print')
## [1] "this is a print"
cat('this is a cat\n')
## this is a cat
message('this is a message')
## this is a message
warning('this is a warning')
## Warning: this is a warning
stop('this is an error')
## Error: this is an error