How to put unequal range of values in functon

Question

Shubham Mohan Tatpalliwar 2018-9-25

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https://ww2.mathworks.cn/matlabcentral/answers/420607-how-to-put-unequal-range-of-values-in-functon

回答： KSSV 2018-9-25

i have made a function for getting interpolated values and in this function i want to give input of unequal range of drehzahl and drehmoment. i have attached the file of the program and its excel sheet

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KSSV 2018-9-25

Copy here a full working code with given inputs..then we can work on the issue of unequal case.

Shubham Mohan Tatpalliwar 2018-9-25

编辑：KSSV 2018-9-25

在 MATLAB Online 中打开

function [Kraftstoffverbrauch,Drehmoment]=Kasus_1_4(Drehzahl, Drehmoment)
[num,txt,raw] = xlsread('Mappe1.xlsx') ;
Dz = num(:,1) ; Dz(isnan(Dz))= [ ];
A = num(:,2:end) ;
A(isnan(A(:,1)),:)=  [] ;
W = A(1:2:end,:) ;
Dm = A(2:2:end,:) ;
Dz1 = repmat(Dz,1,size(Dm,1)) ;
idx = ~isnan(Dm) ;
F = scatteredInterpolant([Dz1(idx) Dm(idx)],W(idx));
Wi = F(Drehzahl,Drehmoment);
Drehmoment2 = Drehmoment*3.0769*2.64;
Geschwindigkeit=  (Drehzahl/(3.07*2.64))*2.037*0.06;
Kraftstoffverbrauch= (2*3.14*(Drehmoment).*(Drehzahl))./(Wi*0.98*0.8.*(Geschwindigkeit)*600);
plot3(Drehzahl,Drehmoment2,Kraftstoffverbrauch)
end
Drehzahl=1:3000
Drehmoment=100:150
the input range would be variable every time

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Answer 1

KSSV 2018-9-25

0
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/420607-how-to-put-unequal-range-of-values-in-functon#answer_338285

在 MATLAB Online 中打开

function [Kraftstoffverbrauch,Drehmoment]=Kasus_1_4(Drehzahl, Drehmoment)
% Modify the dimensions 
nx = length(Drehzahl) ;
ny = length(Drehmoment) ;
if nx > ny
    Drehmoment = linspace(min(Drehmoment),max(Drehmoment),nx) ; 
elseif nx<ny
    Drehzahl = linspace(min(Drehzahl),max(Drehzahl),ny) ;
end
[num,txt,raw] = xlsread('Mappe1.xlsx') ;
Dz = num(:,1) ; Dz(isnan(Dz))= [ ];
A = num(:,2:end) ;
A(isnan(A(:,1)),:)=  [] ;
W = A(1:2:end,:) ;
Dm = A(2:2:end,:) ;
Dz1 = repmat(Dz,1,size(Dm,1)) ;
idx = ~isnan(Dm) ;
F = scatteredInterpolant([Dz1(idx) Dm(idx)],W(idx));
Wi = F(Drehzahl,Drehmoment);
Drehmoment2 = Drehmoment*3.0769*2.64;
Geschwindigkeit=  (Drehzahl/(3.07*2.64))*2.037*0.06;
Kraftstoffverbrauch= (2*3.14*(Drehmoment).*(Drehzahl))./(Wi*0.98*0.8.*(Geschwindigkeit)*600);
plot3(Drehzahl,Drehmoment2,Kraftstoffverbrauch)
end