MATLAB Onramp: 8.1 Obtaining help

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Jigyasu Chand
Jigyasu Chand on 4 May 2020
Answered: Anand Gopal on 19 Jan 2021
Hi folks!
I just started exploring MATLAB and I am stuck at the following place. In the course "MATLAB Onramp" which is one of the 'Getting Started' courses, I am not able to get the solution of '8. Obtaining help - Further Practice'. The task is to create a matrix that
  • Contains random integers in the range from 1 to 20,
  • Has 5 rows, and
  • Has 7 columns.
matrix with normally distributed numbers (instead of uniformly distributed numbers).
Please help on this one.
Thanks in advance!

Accepted Answer

Guillaume on 4 May 2020
I've just discovered that there are several versions of the Onramp course (R2018b, R2019a, and R2019b). The last two have slightly different presentation for the assignment (the first one doesn't seem to work properly) but in neither of them do I see that assignment under further practice. Which version are you using (look at the url)? Perhaps it is also language specific.
The assignment doesn't make sense and certainly won't be answered by the doc. You could rescale and recentre a normal distribution and possibly round it to integers but it still wouldn't be restricted to a range. And you could hardly call the result a normal distribution anymore.
You should report it as a bug to mathworks.
Jigyasu Chand
Jigyasu Chand on 8 May 2020
That seems fair. Thanks a lot!

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