Using a learner's variable value in the MATLAB grader reference solution

19 次查看（过去 30 天）
Simon Shaw
Simon Shaw 2020-5-21
评论： Alfonso da Silva Saavedra 2022-12-30
I would like to use MATLAB grader for questions where each student in a cohort uses their own numerical values for named variables. I would then like to access their specific value in the reference solution so as to mark their individualised submission. For example:
Question: calculate and provide your unique value of u (using some algorithm that is provided offline), and give the value of m = 1/u
Learner Template:
u =
m=
Reference template
user_u = ????
m = 1/user_u
I am looking for what to put into ???? above. Can anybody help with this? Note that randomized data is not sufficient for my need unless the seed in rng(seed) can be provided by the offline algorithm and shared across the learner and reference spaces (but this is pretty much equivalent to the question above).

请先登录，再回答此问题。

回答（2 个）

Cris LaPierre
Cris LaPierre 2020-5-21
编辑：Cris LaPierre 2020-5-21
In MATLAB Grader, the reference and learner solutions share the same seed. Therefore, it is possible to create a problem that will generate a new number every time it is run, but the same number for the reference and learner solutions. For more details, see my post here.
  5 个评论
显示 3更早的评论
Jeff Alderson
Jeff Alderson 2020-7-13
By design, MATLAB Grader solutions do not have access to personally identifiable information about students.
If you were to provide a P-coded function that accepts an input in the form of a Student ID that the learner provides in their solution, you could use that ID as an index to look up data from another P-coded file and return any variable you wish. You could reuse such a function in multiple problems, and include a note in your problem description that the student must provide their own Student ID as an input to your custom function at the start of their solution.
There may be another MATLAB Answers article that demonstrates this, and I will link back to it when I can find it.
Jeff Alderson
Jeff Alderson 2020-7-13
Otherwise, I will take a note of the enhancement request to provide individualized data for learners.

请先登录，再进行评论。

Jeff Alderson
Jeff Alderson 2020-7-13
By design, MATLAB Grader solutions do not have access to personally identifiable information about students.
If you were to provide a P-coded function that accepts an input in the form of a Student ID that the learner provides in their solution, you could use that ID as an index to look up data from another P-coded file and return any variable you wish. You could reuse such a function in multiple problems, and include a note in your problem description that the student must provide their own Student ID as an input to your custom function at the start of their solution.

社区

类别

在 Help Center 和 File Exchange 中查找有关 Create or Copy Coding Problems 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by