---). Here is an example metadata section:--- title: "Crop Analysis Q3 2013" author: Martha Smith date: October 23rd, 2013 ---
Note that the title field is quoted. This is because titles often contained embedded colons (:) and colons followed by a space need to be quoted in YAML.
When generating PDF and Beamer output there are also a number of other metadata fields that can be included to customize the appearance and theme of PDF output. For more details see the documentation for pdf_document and beamer_presentation.