Extrapolation/error handling

2 vues (au cours des 30 derniers jours)
Rava Sash
Rava Sash le 24 Avr 2018
Commenté : Stephen23 le 25 Avr 2018
I'm trying to prevent extrapolation, the input speed (v) can't be lower than 2 or higher than 200. I'm trying to use if/else but I'm being told by a "test-programme" that "Function does not result in error when input results in extrapolation". What am I doing wrong?
My code:
function c = consumption(v)
load roadster.mat;
x = 2:2:200;
y = consumption_Whpkm;
xx=2:200;
pp=spline(x,y);
c = ppval(pp, v);
if v<2 | v>200
error ('Too fast/slow')
else
contine
end
end
  1 commentaire
John D'Errico
John D'Errico le 25 Avr 2018
Modifié(e) : John D'Errico le 25 Avr 2018
Don't answer your own question, and just with a comment. Use a comment. Or edit your question.
Moved an answer by Rava into a comment.
"Should I use try/catch? If so, how would that work? I'm very new to programming and Matlab, any help is appriciated."

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Stephen23
Stephen23 le 25 Avr 2018
I am guessing that v is non-scalar, in which case you will need to use any:
if any(v<2 | v>200)
  2 commentaires
John D'Errico
John D'Errico le 25 Avr 2018
I wonder if the else branch of that if may fail, when the "contine" function is executed. Is that a miss-spelling of "continue"?
Stephen23
Stephen23 le 25 Avr 2018
I quite like the sound of "contine", whatever it may do. It sounds like a french holiday.

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