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Index in position 2 exceeds array bounds (must not exceed 1).

1 vue (au cours des 30 derniers jours)
Md. Shahriar Rahman Sakib
Md. Shahriar Rahman Sakib le 25 Août 2022
Modifié(e) : Walter Roberson le 25 Août 2022
Hello, I'm trying to run this code (gauss elimination), but i get an error message :Index in position 1 exceeds array bounds (must not exceed 1). the error message comes from ''while tmp<=n && IS(tmp,1)~=0 '' . What does "Index in position 1 exceeds array bounds (must not exceed 1)" mean? and how to solve this?
Here is code :
function [RL,HI]=inputt(BM,BS,IS,FS)
if nargin<4, error("4 Inputs required"),end
n=length(BS);
RL(1,1)=BM;
for i=1:n
HI(i,1) = BS(i,1)+BS(i,1);
tmp = i+1;
while tmp<=n && IS(tmp,1)~=0
RL(tmp,1) = HI(i,1)-IS(tmp,1);
tmp=tmp+1;
end
if tmp<=n
RL(tmp,1) = HI(i,1)-FS(tmp,1);
end
i = tmp;
end

Réponses (1)

Karim
Karim le 25 Août 2022
The error is due to the way you are accesing the data, based on you picture the inputs are row vectors. IS is a 1x6 vector. However in the script, you are trying to acces the data as a column vector --> IS (tmp,1) which fails since the input is a row vector.
There are two solutions, either change the input into column vectors (as shown below) or change the indexing in the script i.e. --> IS(1,tmp)
BM = 560.5;
BS = [0.865 1.025 0 2.230 2.355 0]';
IS = [0 0 1.58 0 0 0]';
FS = [0 2.105 0 1.869 2.835 1.76]';
[RL,HI]=inputt(BM,BS,IS,FS)
RL = 6×1
560.5000 -0.3750 0.4700 -1.8690 1.6250 2.9500
HI = 6×1
1.7300 2.0500 0 4.4600 4.7100 0
function [RL,HI]=inputt(BM,BS,IS,FS)
if nargin < 4
error("4 Inputs required");
end
n=length(BS);
RL(1,1)=BM;
for i=1:n
HI(i,1) = BS(i,1)+BS(i,1);
tmp = i+1;
while tmp<=n && IS(tmp,1)~=0
RL(tmp,1) = HI(i,1)-IS(tmp,1);
tmp=tmp+1;
end
if tmp<=n
RL(tmp,1) = HI(i,1)-FS(tmp,1);
end
i = tmp;
end
end

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