Annotation of loncom/html/adm/help/tex/Spreadsheet_HowTo_Assessments.tex, revision 1.1
1.1 ! matthew 1: \label{Spreadsheet_HowTo_Assessments}
! 2:
! 3: \textbf{How to deal with multi-part problems}
! 4:
! 5: Often, there are several parts in a specific problem. For example, a
! 6: problem with three parts would have parts 0, 11, 12, and 13. For a
! 7: general spreadsheet, it is not often desirable to sum up all of these
! 8: parts, while not knowing how many parts there are as the spreadsheet
! 9: is written.
! 10:
! 11: The spreadsheet has a preprocessor which an expand a symbolic
! 12: expression over all symbolic names that fit. The general syntax is
! 13: \index{EXPANDSUM} \texttt{[\&EXPANDSUM(VARNAME;expression)]}.
! 14:
! 15: For example, for the above assessment with three parts,
! 16:
! 17: \texttt{\&EXPANDSUM(}\texttt{\textbf{PART}}\texttt{;parameter\_}\texttt{\textbf{PART}}\texttt{\_weight{*}stores\_}\texttt{\textbf{PART}}\texttt{\_awarded)}
! 18:
! 19: would become
! 20:
! 21: \texttt{parameter\_0\_weight{*}stores\_0\_awarded +}~\\
! 22: \texttt{parameter\_11\_weight{*}stores\_11\_awarded +}~\\
! 23: \texttt{parameter\_12\_weight{*}stores\_12\_awarded +}~\\
! 24: \texttt{parameter\_13\_weight{*}stores\_13\_awarded +}~\\
! 25:
! 26: where \textbf{bolded text} is used to highlight what the
! 27: \texttt{\&EXPANDSUM} function is doing.
! 28:
! 29: \textbf{What 'tries' means}
! 30:
! 31: In multi-part questions, the exported value for "tries"\index{tries} is now
! 32: the average number of tries to get the parts right.
! 33: The full data for each part is still stored by the system.
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>