Documentation errors on mpc page

I'm reading the documentation for the mpc function here.

1. Under the description section the following are each described twice differently

mpcobj = mpc(plant)

mpcobj = mpc(plant,ts)

mpcobj = mpc(plant,ts,P,M,W,MV,OV,DV)

2. In the DisturbanceVariables section the Units field is described as

units — OV units

Should be DV units I think.

Answer 1

[dpb]

mpcobj = mpc(plant)
mpcobj = mpc(plant,ts)
mpcobj = mpc(plant,ts,P,M,W,MV,OV,DV)

the second set is for a model, which is a different structure which includes a plant.

Will agree there's a typo that an "OV" didn't get corrected to "DV" when the doc author missed one when copied over the description for the Distrubance Variables from the Output Variables above.

[Bill Tubbs]

Ah good spot. In the second set of descriptions the plant argument is replaced with model. Didn't notice that thanks. Is that a fundamentally different model type or just a model that includes disturbance and measurement sub-models?

[dpb]

Per the <model input description>, it is just a struct combining the plant description object with the other conditions as a MATLAB struct. Looks to be purely cosmetic 'syntactic sugar' to shorten the argument list.

One does have to parse the doc carefully and follow all the bread crumbs through the forest to get to the end, indeed.

Is a good catch to notice the typo; that's worthy of a note back to MathWorks to make the correction in the doc.

[Bill Tubbs]

I reported the units error on the page feedback.