Debugging a Plot of V vs. z2 for June 7

In summary, the conversation is about a code that gives an error message, "Attempted to access x(402); index out of bounds because numel(x)=401." The code involves various operations on variables such as mu12, mu123, z1, z2, counter, index, count, indexer, m, n, V13, V23, V12, and V. The error occurs due to the variable counter exceeding 401 on the second pass through a for loop.
  • #1
QM3BP
1
0
Code:

mu12=5;
mu123=20/21;
z1=1:15;
z2=-10:0.05:10;

counter=1;
index=1;
count=1;
indexer=1;
m=1;
n=1;

for l=1:1:15;

for p=1:1:401;
x=(sqrt(mu12)/10)*z1(n)+z2/(sqrt(mu123));
y=(-(sqrt(mu12)/10)*z1(n))+(z2/(sqrt(mu123)));

z=1:401;
z(indexer)=z1(n)/sqrt(mu12);
indexer=indexer+1; end;

n=n+1; end

for q=1:1:15;

V13=[];
for i=0:1:398; if abs(x(counter))<1 V13(counter,m)=-1; else V13(counter,m)=0; end; counter=counter+1; end;

V23=[];
for j=0:1:398; if abs(y(index))<1 V23(index,m)=-1; else V23(index,m)=0; end; index=index+1; end;

V12=[];
for k=0:1:398; if abs(z(count))<1 V12(count,m)=-1; else V12(count,m)=0; end; count=count+1; end;

V=[];
V(:,m)=V12(:,m)+V23(:,m)+V13(:,m);

m=m+1; end;

plot(z2,V(:,1))





Error Message:

? Attempted to access x(402); index out of bounds because numel(x)=401.

Error in ==> Vvsz2plot_june7_debug at 28
for i=0:1:398; if abs(x(counter))<1 V13(counter,m)=-1; else V13(counter,m)=0; end; counter=counter+1; end;
 
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  • #2
Learn to indent and format your code! We have a [ code ] tag at this site, but it won't help with your code because your code is formatted flush left.The problem is that you are never resetting the variable counter. That variable exceeds 401 on the second pass through the for q=1:1:15; loop.
 

1. What is the purpose of debugging a plot of V vs. z2 for June 7?

The purpose of debugging a plot of V vs. z2 for June 7 is to identify and fix any errors or issues in the data or code that may be affecting the accuracy or interpretation of the plot. Debugging helps to ensure that the results obtained from the plot are reliable and trustworthy.

2. How do you debug a plot of V vs. z2 for June 7?

To debug a plot of V vs. z2 for June 7, you can start by carefully examining the code used to generate the plot. Look for any syntax errors, missing or incorrect variables, or other issues that may be causing the plot to display incorrect or unexpected results. You can also try plotting the data in different ways or using different parameters to see if the issue persists.

3. What are some common sources of errors in a plot of V vs. z2 for June 7?

Some common sources of errors in a plot of V vs. z2 for June 7 include typos or syntax errors in the code, incorrect or missing data, and incorrect formatting or labeling of the plot. Another potential source of error could be issues with the data collection or measurement process, such as faulty equipment or human error.

4. How can debugging a plot of V vs. z2 for June 7 improve the quality of the data?

Debugging a plot of V vs. z2 for June 7 can improve the quality of the data by identifying and correcting any errors or issues that may be affecting the accuracy of the plot. By ensuring that the data is reliable and accurate, the results obtained from the plot will also be more trustworthy and useful for future analysis or research.

5. What are some tips for effectively debugging a plot of V vs. z2 for June 7?

Some tips for effectively debugging a plot of V vs. z2 for June 7 include carefully reviewing the code and data, using print statements to check the values of variables, and trying different plotting methods or parameters. It can also be helpful to seek input or assistance from colleagues or other experts in the field who may have experience with similar data or plots.

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