MATLAB Answers

Find the help for sim command in the MPC Toolbox

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J Chen
J Chen on 29 Nov 2019
Commented: Fangjun Jiang on 6 Dec 2019
The sim command can be used to simulate Simulink models or MPC objects. How can I open the Help Browser from the command line for the sim in the MPC Toolbox? The "doc sim" command open the reference for Simulink sim, not MPC sim.
I could use the "doc mpc/sim" command in the past to get help from the command line for the MPC sim. It doesn't seem to work in R2018b.

  1 Comment

J Chen
J Chen on 6 Dec 2019
help mpc/sim is able to pull the help page for mpc sim command while doc mpc/sim can't

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Accepted Answer

Fangjun Jiang
Fangjun Jiang on 6 Dec 2019
There seems to exist a consistency issue.
  • In R2018a, "doc mpc/sim" brings up the correct doc page. The address is
web(fullfile(docroot, 'mpc/ref/sim.html'))
  • In R2018b, "doc mpc/sim" WON'T bring up the correct doc page. Using address can bring it up
web(fullfile(docroot, 'mpc/ref/sim.html'))
  • In R2019a, "doc mpc/sim" brings up the correct doc page. The address is slightly different
web(fullfile(docroot, 'mpc/ref/mpc.sim.html'))

  2 Comments

J Chen
J Chen on 6 Dec 2019
I would add that "doc mpc/sim" also works in R2019b. So R2018b is the only version that doesn't work.
How did you find out the corresponding web commands?
Fangjun Jiang
Fangjun Jiang on 6 Dec 2019
Right click on the doc page, select "Get Page Address"

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