Continue If Error Matlab
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Matlab Debug If Error
Skip Error Message and Continue with the M-File Asked by Newuser Newuser (view profile) 5 questions 3 answers 0 accepted answers Reputation: 0 on 17 Jun 2011 Latest activity Commented on by Yu Yu (view profile) 0 questions 0 answers 0 accepted answers Reputation: 0 on 14 Nov 2013 Accepted Answer by Arturo Moncada-Torres Arturo Moncada-Torres (view profile) 0 questions matlab iferror 77 answers 26 accepted answers Reputation: 174 588 views (last 30 days) 588 views (last 30 days) Hello dear Friends,does someone know how to have a m-file to continue after an error message is returned !?I've a file that retrives info from the internet (data, etc.). Sometimes (randomly) an internet connection problem results (error 111) and matlab stops to execute the m-file algo! Since this files connects to more than 5000 web pages (one per time) it is possible that a connection error is returned in matlab.I simply want the program to resume the operations specified in the m-file.does someone know how to do this?thank you for your help ... 0 Comments Show all comments Tags matlabfinancealgointenretyahoo finance Products No products are associated with this question. Related Content 2 Answers Arturo Moncada-Torres (view profile) 0 questions 77 answers 26 accepted answers Reputation: 174 Vote1 Link Direct link to this answer: https://www.mathworks.com/matlabcentral/answers/9713#answer_13347 Answer by Arturo Moncada-Torres Arturo Moncada-Torres (view profile) 0 questions 77 answers 26 accepted answers Reputation: 174 on 17 Jun 2011 Accepted answer Completing
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Matlab Catch Me
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Catch Matlab
Link Exchange ThingSpeak Anniversary Home Ask Answer Browse More Contributors Recent Activity Flagged Content Flagged as Spam Help Trial software Christine (view profile) 5 questions 4 answers 0 accepted https://www.mathworks.com/matlabcentral/answers/9713-skip-error-message-and-continue-with-the-m-file answers Reputation: 2 Vote0 continue for-loop despite matlab error Asked by Christine Christine (view profile) 5 questions 4 answers 0 accepted answers Reputation: 2 on 19 Apr 2012 Accepted Answer by Daniel Shub Daniel Shub (view profile) 62 questions 1,272 answers 398 accepted answers Reputation: 2,832 113 views (last 30 days) 113 views (last 30 days) I https://www.mathworks.com/matlabcentral/answers/35982-continue-for-loop-despite-matlab-error want to process a number of images for data analysis. If one of the images causes a matlab error, I want the program to display a message but to continue with the analysis of the following images. So it would need to continue with the next iteration of a for loop. Is this possible and how would I do this?Thanks, Christine 0 Comments Show all comments Tags continueloopmatlab error Products No products are associated with this question. Related Content 2 Answers Daniel Shub (view profile) 62 questions 1,272 answers 398 accepted answers Reputation: 2,832 Vote1 Link Direct link to this answer: https://www.mathworks.com/matlabcentral/answers/35982#answer_45009 Answer by Daniel Shub Daniel Shub (view profile) 62 questions 1,272 answers 398 accepted answers Reputation: 2,832 on 19 Apr 2012 Accepted answer You could do something likefor ii = 1:n try % your code catch ME warning('Something happened'); end end 0 Comments Show all comments Christine (view profile) 5 questions 4 answers 0 accepted answers Reputation: 2 Vote0 Link Direct link to this answer: https://www.mathworks.com/matlabcen
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the http://stackoverflow.com/questions/21968114/how-to-skip-an-error-inside-a-loop-and-let-the-loop-continue company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 http://stackoverflow.com/questions/20737506/try-catch-block-in-matlab million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up How to skip an error inside a loop and let the loop continue up vote 0 down vote favorite if error The following is my full code: (Most of it isn't useful for what I'm asking, but I just put in the entire code for context, the part of the code that is causing me trouble is towards the end) clc clear P = xlsread('b3.xlsx', 'P'); d = xlsread('b3.xlsx', 'd'); CM = xlsread('b3.xlsx', 'Cov'); Original_PD = P; %Store original PD LM_rows = size(P,1)+1; %Expected LM rows LM_columns = size(P,2); %Expected LM columns LM_FINAL = if error matlab zeros(LM_rows,LM_columns); %Dimensions of LM_FINAL % Start of the outside loop for k = 1:size(P,2) P = Original_PD(:,k); interval = cell(size(P,1)+2,1); for i = 1:size(P,1) interval{i,1} = NaN(size(P,1),2); interval{i,1}(:,1) = -Inf; interval{i,1}(:,2) = d; interval{i,1}(i,1) = d(i,1); interval{i,1}(i,2) = Inf; end interval{i+1,1} = [-Inf*ones(size(P,1),1) d]; interval{i+2,1} = [d Inf*ones(size(P,1),1)]; c = NaN(size(interval,1),1); for i = 1:size(c,1) c(i,1) = mvncdf(interval{i,1}(:,1),interval{i,1}(:,2),0,CM); end c0 = c(size(P,1)+1,1); f = c(size(P,1)+2,1); c = c(1:size(P,1),:); b0 = exp(1); b = exp(1)*P; syms x; eqn = f*x; for i = 1:size(P,1) eqn = eqn*(c0/c(i,1)*x + (b(i,1)-b0)/c(i,1)); end eqn = c0*x^(size(P,1)+1) + eqn - b0*x^size(P,1); x0 = solve(eqn); for i = 1:size(x0) id(i,1) = isreal(x0(i,1)); end x0 = x0(id,:); x0 = x0(x0 > 0,:); clear x; for i = 1:size(P,1) x(i,:) = (b(i,1) - b0)./(c(i,1)*x0) + c0/c(i,1); end x = [x0'; x]; x = double(x); x = x(:,sum(x <= 0,1) == 0) lamda = -log(x); LM_FINAL(:,k) = lamda; end % end of the outside loop The important part of the above loop is towards the end: x = x(:,sum(x <= 0,1) == 0) This condition is sometimes not satisfied and hence the variable x is empty, which means LM_FINAL(:,k) = lamda is also empty. When this happens, I get the error: x = Empty matrix: 43-by-0 Improper assignment with rectangular empty matrix. Error in Solution (l
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up try catch block in Matlab up vote 6 down vote favorite 1 So, I am reading hundreds of image files via imread('D:\pic1\foo.jpg') and some of them are like imread('D:\pic2\Thumbs.db'). After reading I am storing in a database like this, train(i) = imread('D:\pic1\foo.jpg'). The problem is with imread('D:\pic2\Thumbs.db'), the reading of such files gives error obviously . I wanted to mitigate this problem like this: for i=1:N try train(i) = imread(link{i}) %link{i} can be 'D:\pic2\Thumbs.db' or 'D:\pic1\foo.jpg' catch disp('Error') end end The issue is in the try block here. There are two things happening one is reading the file another is assigning imread value to train(i). Now, this is important, only on a successful imread() should there be an assignment and on a failure there would an error. Matlab takes care of the error via catch block, there isn't a block to take care of the success condition where I can do the assignment, so that I can read and write without much hassle. I want something like this: j = 0; for i=1:N try: imread(links{i}) if success: train(j) = imread(links{i}) j = j+1; if fail: error end end I only came up with try and catch while searching Matlab docs, I will really appreciate if there is anything which will help me to write the code succinctly. matlab share|improve this question edited Dec 24 '13 at 4:33 asked Dec 23 '13 at 5:32 motiur 30111434 add a comment| 2 Answers 2 active oldest votes up vote 9 down vote accepted The solution by @gnovice is correct, but it can be written a bit more succinctly: ct = 1; for i=1:N try train(ct) = imread(links{i}); ct = ct +1; %# if imread fails, this line is not executed catch me %# report the problematic image, and the reason for failure fprintf('image #%i (%s) cannot be opened: %s\n',i,links{i},me.message) end end share|improve this answer answered Dec 23 '13 at 8:53 Jonas 66k7101136 I love you guys.I ended up coding like that. –motiur Dec 23 '13 at 9:33 add a comment| up vote 2 down vote You can solve this problem with a conti