Array indices must be positive integers or logical values. in line 5

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Saurabh Kore
Saurabh Kore 2022-11-9
回答： Kalpesh Bagmar 2022-11-9
n=input('\n Enter number of elements = ');
fori=1:n;
tx=input('\n Enter the value of x = ');
temp=input('\n Enter the value of y = ');
x(i)=log(tx);
y(i)=log(temp);
s0=0;
s1=0;
s2=0;
s3=0;
for i=1:n
s0=s0+x(i);
s1=s1+y(i);
s2=s2+x(i)*y(i);
s3=s3+x(i)*x(i);
end
d=s0*s0-n*52;
da=s1*s0n*52;
db=s0*s2-s1*s3;
a1=da/d;
b1=db/d;
b=a1;
a=exp(b1);
fprintf('\n y=(%f)x^(%f)',a,b);

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回答（2 个）

Matt J
Matt J 2022-11-9
编辑：Matt J 2022-11-9
Correct the missing space in,
fori=1:n;
Kalpesh Bagmar
Kalpesh Bagmar 2022-11-9
I dont know what exactly are you trying to achieve with this logic. If you can throw some light on that, it will be helpful.
I have edited your code snippet to make it error free, if in case this is want you want.
n=input('\n Enter number of elements = ');
x={}
y = {}
for i=1:n
tx=input('\n Enter the value of x = ');
temp=input('\n Enter the value of y = ');
x{i}=log(tx);
y{i}=log(temp);
s0=0;
s1=0;
s2=0;
s3=0;
for j=1:i %we cannot iterate to n as x array only has i elements at any given time
s0=s0+x{j};
s1=s1+y{j};
s2=s2+x{j}*y{j};
s3=s3+x{j}*x{j};
end
d=s0*s0-n*52;
da=s1*s0-n*52;
db=s0*s2-s1*s3;
a1=da/d;
b1=db/d;
b=a1;
a=exp(b1);
fprintf('\n y=(%f)x^(%f)',a,b);
end

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