--- loncom/html/adm/help/tex/Custom_Response_Problems.tex 2006/07/18 18:56:11 1.2 +++ loncom/html/adm/help/tex/Custom_Response_Problems.tex 2007/03/30 21:35:13 1.3 @@ -3,12 +3,12 @@ Custom Response is a way to have a probl generally discouraged, since the responses will not be analyzable by the LON-CAPA statistics tools. The student answer is stored in the -variable \$submission, and needs to be evaluated by Perl code inside the -tag. Custom Response needs to return a standard LON-CAPA grading code: +variable \$submission, and needs to be evaluated by Perl code inside the -tag. Custom Response needs to return a standard LON-CAPA. The most common response are: \begin{itemize} \item EXACT\_ANS: return if solved exactly correctly \item APPROX\_ANS: return if solved approximately \item INCORRECT: return if not correct, uses up a try -\item SIG\_FAIL, NO\_UNIT, ANS\_CNT\_NOT\_MATCH, BAD\_FORMULA, +\item SIG\_FAIL, NO\_UNIT, EXTRA\_ANSWER, MISSING\_ANSWER, BAD\_FORMULA, WANTED\_NUMERIC: return if not correct for different reasons, does not use up a try \end{itemize} The answer display is shown instead of the student response in 'show answer' mode. @@ -19,7 +19,7 @@ The following example illustrates this: # We do not want a vector -if ($submission=~/\,/) { return 'ANS_CNT_NOT_MATCH'; } +if ($submission=~/\,/) { return 'EXTRA_ANSWER'; } # Need a numerical answer here if ($submission!~/^[\d\.\-\e]+$/i) { return 'WANTED_NUMERIC'; } $difference=abs(90-abs($submission)); @@ -30,3 +30,32 @@ return 'INCORRECT'; \end{verbatim} + + +Full list of possible return codes: +\begin{itemize} +\item EXACT_ANS: student is exactly correct +\item APPROX_ANS: student is approximately correct +\item NO_RESPONSE: student submitted no response +\item MISSING_ANSWER: student submitted some but not all parts of a response +\item EXTRA_ANSWER: student submitted a vector of values when a scalar was expected +\item WANTED_NUMERIC: expected a numeric answer and didn't get one +\item SIG_FAIL: incorrect number of Significant Figures +\item UNIT_FAIL: incorrect unit +\item UNIT_NOTNEEDED: Submitted a unit when one shouldn't +\item UNIT_INVALID_INSTRUCTOR: the unit provided by the author of the problem is unparsable +\item UNIT_INVALID_STUDENT: the unit provided by the student is unparasable +\item UNIT_IRRECONCIBLE: the unit from the student and the instructor are of different types +\item NO_UNIT: needed a unit but none was submitted +\item BAD_FORMULA: syntax error in submitted formula +\item INCORRECT: answer was wrong +\item SUBMITTED: submission wasn't graded +\item DRAFT: submission only stored +\item MISORDERED_RANK: student submitted a poorly order rank response +\item ERROR: unable to get a grade +\item ASSIGNED_SCORE: there is a resource.partid.responseid.awarded the real awarded should be set to the average of the individual awards +\item TOO_LONG: answer submission to CAPA engine longer than 500 characters +\item INVALID_FILETYPE: student tried to upload a file that was of an extension that was not specifically allowed +\item COMMA_FAIL: answer requires the use of comma grouping and it wasn't provided or was incorrect + +\end{itemize} \ No newline at end of file