how to solve the error array indices must be positive indices or logical values.

the error i am getting: Array indices must be positive integers or logical values.

Error in get_im_label (line 14)
    if ~strcmp(dataname(j).name(end-1:end),'db') % ËÎ

Error in demo_CURET (line 25)
imageDatasetLabel = get_im_label(imdir);

how to solve this? i have attached my code with this.

[Matt J]

What is the value of j at line 14 when the error occurs?

[Shan Sha]

the value of j is 486 when the error occurs

[Kevin Chng]

how about (end-1:end), any possible that it is negative value (end-1)?

Answer 1

[Walter Roberson]

Your directory contains a name that is one character long. For example your code is not accounting for the . entry you will find in most file systems.

[Shan Sha]

sir, I cant get you

[Kevin Chng]

Some of your file might have only one character, so name(end-1:end) become name(0:1)

[Shan Sha]

ok sir. let me change it

Answer 2

[Steven Lord]

If that section of code is intended to check that the file has the extension db, instead call fileparts on the filename then use isequal, strcmp, etc. to test if the third output matches .db.

Answer 3

[Image Analyst]

Try this:

if endsWith(dataname(j).name,'db','IgnoreCase',true) 
    % filename ends with 'db'
else
    % Filename does not end with 'db'
end

endsWith() requires R2016b or later.

[Shan Sha]

i m using R2018a

[Image Analyst]

Then you should be ok. So replace all that complicated code of yours with the code I gave you.

[Shan Sha]

ok sir let me try