In general, the macro name represents a function and the parameters contain the values
for the variables that can be used with the function.
The parameters can be specified in any order.
Each of the parameters in the SGANNO macros corresponds to a variable in the SG
annotation data set.
The parameters are either numeric or character. Numeric parameters can be numeric
constants or numeric variable names that have been initialized to the appropriate value.
Character parameters must be enclosed in quotation marks or specified as character ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month, and much more.