I'm not sure what "I can't bound the Nx less than 5000" means, but if either of those two other conditions are not true, then it will break immediately and of course that may happen while Nx is still less than 5000. How do I arrange multiple quotations (each with multiple lines) vertically (with a line through the center) so that they're side-by-side? Create a script file and type the following code , When you run the file, it displays the following result , Enjoy unlimited access on 5500+ Hand Picked Quality Video Courses. Share Follow While loop starts and the condition is less than 20. offers. We initialize the value of the first number as 1 . The loop only exits when the set of parameters contains a value outside the specified limits. To learn more, see our tips on writing great answers. The loop will continue if the condition is met, and break if the condition(s) is not met. Search Answers Clear Filters. You may receive emails, depending on your. Concentration bounds for martingales with adaptive Gaussian steps. Otherwise, the expression is false. If we know a specific number, such as 32, we can say 5 times, but for a given symbolic variable "NUMBER" which . ALSO (from the comments below): Each repetition of a loop is known as a Pass. Multiple conditions for while loop. Use a while loop in which you put the prompt (here I use inputdlg) and once the user enters the answer, you check if the string entered compares to either yes, Yes, no and No. The difference is that while loops check the condition at the beginning of the loop while do while loops check the condition at the end of the loop. Let me tell you what happens during the loop. - MATLAB Answers - MATLAB Central Multiple conditions for while loop. The problem is the loop is updating values for only once and after that its returning . Reload the page to see its updated state. Learn more about while, loop, condition, iteration . MATLAB Language Fundamentals Loops and Conditional Statements. The problem is the loop is updating values for only once and after that its returning the same value. My while cycle must work until ALL conditions inside my vectors are satisfied. MOSFET is getting very hot at high frequency PWM. Based on @bobdude "I need something that will act as if it were an ||, not an &&" Not according to your conditions. What is Matlab while loop? 1 Answer Sorted by: 5 || means or ( with short circuiting ). model.SIG2>0.01 model.SIG2<0.022 model.SIG3>0.2 model.SIG3<0.6]; The loop exits after a variable number of passes, not just one. Th: 311 And what does " at the same time mX_check should be less than 0.1" mean? And you have && so if any one of those is not true, the loop will quit. es = .01; imax = 100; iter = 0; ea = es; As we know, do while in Matlab is a simple loop that is used to evaluate the program at least once. Again you've removed a conditional operator between the two logical operations. You can use it for multiple conditions in your while loop. An expression is true when the result is nonempty and contains all nonzero elements (logical or real numeric). Find more on Loops and . The MATLAB while loop is similar to a do.while loop in other programming languages, such as C and C++. while loop multiple conditions. Copy. The while loop is used to repeat a section of code an unknown number of times until a specific condition is met. A condition-controlled loop in MATLAB is called a while loop. . By using this website, you agree with our Cookies Policy. So mX_check. while resolution_check less than 8 continue to run, while mX_check larger than 0.1 continue run, When resolution_check is 8 or bigger + mX_check less than 0.1, while (resolution_check<8 mX_check>0.5 ) && Nx<5000 this looks like it is working, (resolution_check<8 mX_check>0.5 ) && Nx<5000, "stop executing when resolution_check >= 8 but, AHA!! Is there any reason on passenger airliners not to have a physical lock between throttles? But, the, is the same logic just in one statement and as the, dpb is right - that is incorrect syntax. Based on Please point out the error as i need to update all the parameters each time within the given boundation untill . This is ambiguous: "while trying to reach resolution_check<8 and mX_check>0.1" If resolution_check is 2, then that means you've reached (achieved) the condition of "resolution_check<8". It will not stop when Nx<5000 as you said - that is incorrect. The syntax for a nested while loop statement in MATLAB is as follows: while . Learn more about while loop, conditional statement, logical operators MATLAB 1. https://www.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions, https://www.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions#answer_204270, https://www.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions#comment_331640, https://www.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions#comment_331652, https://www.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions#comment_331677, https://www.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions#answer_204272, https://www.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions#comment_331653, https://www.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions#answer_204276, https://www.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions#comment_331696, https://www.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions#comment_331697, https://www.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions#comment_331701, https://www.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions#comment_331738. Mathematica cannot find square roots of some matrices? The loop will continue if the condition is met, and break if the condition (s) is not met. MathWorks is the leading developer of mathematical computing software for engineers and scientists. EP3: 21.4660 5 Answers Sorted by: 1 To plot the line y = x: x = 1:100; y = 1:100; plot (x, y); You don't need a loop at all if that's all you're trying to do. Both these two should met. Are the S&P 500 and Dow Jones Industrial Average securities? ((resolution_check<8) && (mX_check>0.1)) || (Nx<5000); I can't bound the Nx less than 5000 with this and loop stops either mX_check or resolution_check reaches the condition. Personally I'd do it like dpb showed last, with the "if" test inside the while loop and break out if it's true. While loop execution with multiple numeric and. Basically there is no do while loop in Matlab like c programming, cpp programming, and other programming languages. sites are not optimized for visits from your location. So do you want to break out of the loop when resolution_check is 2? mX_check <= 0.1. The loop only exits when the parameter set is, %model.EP1 = model.EP1; % this does nothing, %model.SIG1 = model.SIG1; % this does nothing, % two parameters are out of bounds (SIG2 and EP3), tvec = [model.Po+model.Th==500 model.Po>188 model.Po<210 model.Th>290 model.Th<312, model.EP2>2.8 model.EP2<4.5 model.EP3>22 model.EP3<26. Multiple Sclerosis (MS) is the most common neurodegenerative disease affecting young people. 'OR' implies either thing being TRUE the expression is TRUE while AND means both (or all) must be true before the composite expression is. Not the answer you're looking for? You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. You can use it for multiple conditions in your while loop. Find the treasures in MATLAB Central and discover how the community can help you! For me it is strange. Why would Henry want to close the breach? while loop multiple conditions. Here is my while loop. your location, we recommend that you select: . Learn more about while, loop, condition, iteration . mX_check<=0.1 to be true at the same time in order to break out of the loop, plus you want to break out regardless of those values if Nx ever gets more than 5000, you need to do it this way: (resolution_check < 8 || mX_check > 0.1) && Nx<5000, Now it will break if Nx ever meets or exceeds 5000, regardless of the values of resolution_check < 8 and mX_check. Affordable solution to train a team and make them project ready. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. I want the loop try to run and increase the resolution_check and decrease the mX_check to those levels as long as Nx is less than 5000. To check the condition at the end of the loop using a while loop, use an if statement inside the while loop: Theme. https://www.mathworks.com/matlabcentral/answers/1615145-multiple-conditions-using-while-loop, https://www.mathworks.com/matlabcentral/answers/1615145-multiple-conditions-using-while-loop#comment_1897640, https://www.mathworks.com/matlabcentral/answers/1615145-multiple-conditions-using-while-loop#comment_1897655, https://www.mathworks.com/matlabcentral/answers/1615145-multiple-conditions-using-while-loop#comment_1898310. Based on while loop multiple conditions. So this will stop when Nx<5000 that means it won't enter the loop. Reload the page to see its updated state. Find the treasures in MATLAB Central and discover how the community can help you! So if the resolution condition + mX condition met before Nx reaches 5000 => break. while (user_input ~= 256 & user_input ~= 128 & user_input ~= 64) prompt = 'Please enter one of the listed gray levels (256, 128, 64, 32, 16, 8, 4, 2). We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. Toggle Sub Navigation. What if it's 0.2 (meaning continue to run) but resolution_check is more than 8 (meaning to stop/break)? You want to use AND, which is &&. Example An expression is true when the result is nonempty and contains all nonzero elements (logical or real numeric). Debian/Ubuntu - Is there a man page listing all the version codenames/numbers? Regardless, if you want the loop to iterate more times, you can decrease some of the dPo, etc., values and/or widen some of the boundary limits away from the initial values, if either of those things make sense to do in context. Thanks for contributing an answer to Stack Overflow! To subscribe to this RSS feed, copy and paste this URL into your RSS reader. So if resolution_check >= 8 or mX_check <= 0.1 then the condition is not true and it will break immediately. Learn more about while loop conditional execution, while loop, loop execution, conditional execution, logical and numeric conditional execution, input validation, while loop input validation, while loop with multiple conditions, while loop with 3 conditions MATLAB Again, we can write a while loop. but I think I am confused between (or) and && (and) . The code is given below. I'm performing a while loop to recreate iterative cycles so as input conditions I have 2 vectors of N elements each one and I cannot convert them into logical. Otherwise, the expression is false. while loop with multiple conditions write a while loop that multiplies uservalue by 2 while all of the following conditions are true: .uservalue is not 10 - uservalue is less than 25 your function 1 function uservalueadjustvalue (uservalue) 31 % write a while loop that multiplies uservalue by 2 save reset matlab documentation % while uservalue When nesting a number of while statements, each while statement requires an end keyword. Received a 'behavior reminder' from manager. while (abs (A-B) <= 50) . The while loop does not take an expression describing the abortion prerequisites, but those for continuation. Learn more about while, loop, condition, iteration Hi, I'm performing a while loop to recreate iterative cycles so as input conditions I have 2 vectors of N elements each one and I cannot convert them into logical. So let's just ask what conditions do you want to run the loop or break out of it: If the loop "stops either mX_check or resolution_check reaches the condition." MATLAB Answers. we write, int (x, a, b) For example, to calculate the value of we write . The way they work. This will mean the loop quits when at least one of the conditions is false. Nx increases, resolution increases and mX decreases. Using the or logical operator would mean that user_input should be 256, 128 and 64 at the same time to break the loop. - well that's just not true. Follow 533 views (last 30 days) Show older comments Ahmad on 18 Apr 2016 0 Link Translate Commented: Shaarif Dilshad on 13 Jan 2021 Theme Copy while (Ea0 >= 0.01)&& (Ea0 >= 0.01)|| (Sr >= 10^-4) This loop keeps on going even though the first part Theme Copy (Ea0 >= 0.01)&& (Ea1 >= 0.01) user_input == conditional_value returns an array composed of 1s and 0s depending on if values of conditional_values match with user_input. Suppose i have a n * d matrix (2D datas). We make use of First and third party cookies to improve our user experience. Multiple conditions using while loop. (resolution_check<8) & (mX_check>0.1) & (Nx<5000). Respected sir, I am facing problem in executing while loop with multiple conditions. Currently, there is no cure. Do you continue to run, or do you break? Thank you for your help. Does this mean the same model struct that is returned the first time is passed back in again later without modification? ismemeber seems like the best way since I need something that will act as if it were an ||, not an &&. And you have && so if any one of those is not true, the loop will quit. end. Learn more, Data Preprocessing for Machine Learning using MATLAB. So effectively you have to turn your thoughts around and describe what has to be true to continue. You may receive emails, depending on your. This means that your loop won't quit until all of the conditions are false. The kinds of control flow statements supported by different languages vary, but can be categorized by their effect: Continuation at a different statement (unconditional branch or jump); Executing a set of statements only if some condition is met (choice - i.e., conditional branch) Executing a set of statements zero or more times, until some condition is met (i.e., loop - the same as . Other MathWorks country The function simply perturbs the parameter values until they walk outside the boundaries. Copy. However, while evaluates the conditional expression at the beginning of the loop rather than the end. The while loop repeatedly executes statements while condition is true. '; user_input = input (prompt); end Not sure why you left the second conditional off but that should do it Because when I before I start the loop Nx=1000 (pre-set). Ahmad on 18 Apr 2016 Commented: Shaarif Dilshad on 13 Jan 2021 Theme Copy while (Ea0 >= 0.01)&& (Ea0 >= 0.01)|| (Sr >= 10^-4) This loop keeps on going even though the first part Theme Copy (Ea0 >= 0.01)&& (Ea1 >= 0.01) It WILL enter the loop and keep going until Nx>=5000 or one of the other conditions fails. For example, say we want to know how many times a given number can be divided by 2 before it is less than or equal to 1. Multiple conditions using while loop. When would I give a checkpoint to my D&D party that they can return to if they die? sites are not optimized for visits from your location. model.Po = model.Po + round(dPo*(randn/2)); model.SIG2 = model.SIG2 + dSIG2*(randn/2); model.SIG3 = model.SIG3 + dSIG3*(randn/2); How is this supposed to work? Choose a web site to get translated content where available and see local events and Asking for help, clarification, or responding to other answers. Accelerating the pace of engineering and science, MathWorks es el lder en el desarrollo de software de clculo matemtico para ingenieros. How is the merkle root verified if the mempools may be different? Hi, I'm performing a while loop to recreate iterative cycles so as input conditions I have 2 vectors of N elements each one and I cannot convert them into logical. Answers. Accelerating the pace of engineering and science. Unable to complete the action because of changes made to the page. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. A loop is a structure for repeating a calculation or a set number of calculations a predefined number of times. Unlike in a For Loop, the number of passes is not known in advance. In matlab, you have to highlight the line then run the highlighted section ( shift + F7 ). Accelerating the pace of engineering and science. Assuming it is 310, which is the only way the loop will execute at all, when I run this I find that the loop usually iterates once - but sometimes more than once - and the values stored in the model struct do seem to get updated correctly. Hi programming in Matlab here, and for some reason I keep getting errors in my while loop. My guess is that this loop shouldn't even be part of this function, but part of the calling scope instead, but that's just a wild guess. The while loop stops after testing val= 10 ; this is when the condition of the while loop becomes false. So we need to figure out if you mean, (resolution_check<8 && mX_check>0.1) && Nx<5000, (resolution_check<8 || mX_check>0.1) && Nx<5000, Exactly what does "resolution condition + mX condition met" mean? The syntax for a nested while loop statement in MATLAB is as follows: while <expression>. Penrose diagram of hypothetical astrophysical white hole. The code is given below. The loop will continue if the condition is met, and break if the condition (s) is not met. Hi, I'm performing a while loop to recreate iterative cycles so as input conditions I have 2 vectors of N elements each one and I cannot convert them into logical. Coding A Neural Network In Matlab. Prof. Arbel is part of an interdisciplinary collaborative research network in Multiple Sclerosis (MS), comprised of a set of researchers from around the world, including neurologists and experts in MS, biostatisticians, medical imaging specialists, and members . If we are sure about how many times we need to perform a particular task then for loop is used. As beaker pointed out, what you ask is to ask for input as long as it is not one of the following values : 256, 128 or 64. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. 1 Answer Sorted by: 2 The symbol & is the and logical operator. So effectively you have to turn your thoughts around and describe what has to be true to continue. But instead of using do while loop works powerfully in Matlab. Other MathWorks country The While loop is used when the looping process terminates because a prescribed condition is met. offers. This is my code: Theme Copy if true % code c2=input ('what is the coefficient for x^2'); c1=input ('what is the coefficient for x'); c0=input ('What is the last coefficient'); a=input ('What is value for a'); b=input ('what is value for b'); Basically, after the WHILE statement, I put multiple conditions in order but matlab doesn't work. The while loop repeatedly executes program statement(s) as long as the expression remains true. offers. Making statements based on opinion; back them up with references or personal experience. And you have && so if any one of those is not true, the loop will quit. We also set the initial value of the sum to 0 . . If it fits, a message appears. PSE Advent Calendar 2022 (Day 11): The other side of Christmas, Central limit theorem replacing radical n with n. My work as a freelance was used in a scientific paper, should I be included as an author? Should teachers encourage good students to help weaker ones? SIG3: 0.3392. Choose a web site to get translated content where available and see local events and If you use. The while loop does not take an expression describing the abortion prerequisites, but those for continuation. Create a Matlab script that calculates the sum of 1 through 11 . Example 2: Matlab While Loop. In the United States, must state courts follow rulings by federal courts of appeals? Unable to complete the action because of changes made to the page. I want to while loop stop executing when resolution_check >= 8 (that is good enough resolution for me) but at the same time mX_check should be less than 0.1. Reload the page to see its updated state. SIG2: 0.0073 An other way to go, proposed by Luis Mendo, is to use any. sites are not optimized for visits from your location. Unable to complete the action because of changes made to the page. matlab while loop multiple conditions How to Have Multiple or Conditions for While Loop Having MATLAB to run multiple independent functions which contains infinite while loop multiple conditions in a for loop matlab Retaining colors while plotting multiple lines in a loop (Matlab) Error while trying to repeat a script multiple times in a for loop By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Note that currently, the value of a is 10. Find centralized, trusted content and collaborate around the technologies you use most. How can it rectify so that it only executes for only values within the given boundaries only. Please point out the error as i need to update all the parameters each time within the given boundation untill . The syntax of a while loop in MATLAB is while <expression> <statements> end The while loop repeatedly executes program statement (s) as long as the expression remains true. Agree your location, we recommend that you select: . You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. 1 1 1 1 1 1 1 0 1 0 1 1 1, Po: 189 MathWorks is the leading developer of mathematical computing software for engineers and scientists. Then any finds if there is at least one 1 on this array. If Nx is less than 5000, the loop will continue if, mX_check > 0.1, meaning that it will only break and it will break. Respected sir, I am facing problem in executing while loop with multiple conditions. Connect and share knowledge within a single location that is structured and easy to search. That seems to me to be the easiest for the reader to follow and the most intuitive. So does that do what you want? If that's the case, then of course the loop will iterate zero times on the second and subsequent times through the function, because the while condition has not changed since the first time through when it became false and the function returned. If he had met some scary fish, he would immediately return to the surface. That said, to answer your original question you cannot have multiple conditions in a for loop, for that you want a nested for loop as @DennisJaheruddin has shown. So if resolution_check >= 8 or mX_check <= 0.1 then the condition is not true and it will break immediately. Description. Next line prints the current value of a and after that, the next line is executed The line a=a+1, adds 1 to a and then the while condition is again checked. Respected sir, I am facing problem in executing while loop with multiple conditions. That's a different condition than you'd outlined before (and, admittedly, I skimmed over it earlier). The problem is the loop is updating values for only once and after that its returning the same value. The syntax of a while loop in MATLAB is . The code is given below. As IA notes, then you need a compound expression which apparently is where you're having syntax issues. sir for ur respond.your syntax works as required, but EP2,EP3,SIG2,SIG3 also executing when it is out of bounds . What it means is that the while loop will run till the value of a is less than 20. For a, (resolution_check<8 | mX_check>0.1) & Nx<5000, convergence parameter being out of range while the number of iterations is under the limit cause the loop to continue. your location, we recommend that you select: . https://es.mathworks.com/matlabcentral/answers/494506-while-loop-multiple-conditions, https://es.mathworks.com/matlabcentral/answers/494506-while-loop-multiple-conditions#answer_404424. Other MathWorks country It might be easier to see if it were rewritten a little differently as, Here the check is for the joint conditions of convergence being satisfied ("AND") and if satisfied the loop on the total number of iterations is exited. Therefore, can you please explain more about what you mean by, "The problem is the loop is updating values for only once and after that its returning the same value."? Your whole understanding of how a while loop works is, while (resolution_check<8 mX_check>1 ) && Nx<5000. cond_2 = sum(abs(T_WIREfront-T_WIREback)>eps) == length(T_WIREfront); You may receive emails, depending on your. In Matlab, mostly two loops are used to do operations. Theme. The symbol & is the and logical operator. Then we apply ~ which is the not operator. Can anyone give me an example on how to make multiple conditions in a while loop? Support; MathWorks; if Nx reaches 5000 loop breaks no matter what resolution or mX are. If it does not, the dialog box pops up again. So if resolution_check >= 8 or mX_check <= 0.1 then the condition is not true and it will break immediately. Not sure if it was just me or something she sent to the whole team, confusion between a half wave and a centre tapped full wave rectifier. I don't see where anything is done with the intermediate parameter values. The sloppy terminology is preventing us from figuring out what to use, OR or AND. Find the treasures in MATLAB Central and discover how the community can help you! Having MATLAB to run multiple independent functions which contains infinite while loop; multiple conditions in a for loop matlab; Multiple while loop conditions; Multi Condition While Loop (w/ multiple conditions within same variable) How to Have Multiple or Conditions for While Loop; Run multiple instances of matlab without a parfor loop . Multiple conditions for while loop. rev2022.12.11.43106. The boundary limits for each parameter are: The initial values i have taken are ,Po=190,EP1=1,EP2=3, EP3=23,SIG1=0,SIG2=0.015,SIG3=0.3, (model.Po+model.Th==500&& model.Po>188 && model.Po<210 && model.Th >290&& model.Th <312&&, (model.EP2>2.8&& model.EP2<4.5)&&(model.EP3>22&& model.EP3<26)&&(model.SIG2>0.01&& model.SIG2<0.022)&&(model.SIG3>0.2&& model.SIG3<0.6)). Ready to optimize your JavaScript with Rust? Choose a web site to get translated content where available and see local events and Hello, I am trying to set a while loop but I am having hard time to make it work the way I wanted to work. Add a new light switch in line with another switch? For me one of the statement has to fail but it is not working like that. T_WATERback=ones(1,n_windings)*T_water_hp; T_WIREback=ones(1,n_windings)*(180+273.15); cond_1 = sum(abs(T_WATERfront-T_WATERback)>eps) == length(T_WATERfront). Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content, Syntax for a single-line while loop in Bash, Executing a try/catch within a while loop, While Loop with Multiple String Conditions Cannot Leave Loop. I want the loop continue running as long as Nx less than 5000 while trying to reach resolution_check<8 and mX_check>0.1. Learn more about while loop, conditional statement, logical operators MATLAB. >> resolution_check=0; mX_check=1; Nx=1000; It will loop WHILE Nx<5000, which is why they call it a while loop. EP2: 2.8569 Meanwhile the third variable Nx has to be less than 5000. 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