Add a title into a document object
addTitle(doc, value, ...) # S3 method for docx addTitle(doc, value, level = 1, ...) # S3 method for pptx addTitle(doc, value, ...)
further arguments passed to or from other methods..
a document object
Function addTitle when used with docx object needs to know which
style correspond to which title level (1 ; 1.1 ; 1.1.1 ; etc.).
When a template is read, ReporteRs tries to guess what are the available
styles (english, french, chinese, etc.). If styles for titles has not
been detected you will see the following error when addTitle is being called:
You must defined title styles via map_title first.
As the error message points out, you have to call the function `map_title` to indicate which available styles are meant to be used as title styles.
To add a title into a pptx object you only have to specify the text to use as title. There is no level concept.