while loop in matlab with two conditions

Based on your location, we recommend that you select: . Operands to the and && operators must be convertible to logical scalar values. condition of while to true and place the conditional expression inside the loop. And you have && so if any one of those is not true, the loop will quit. Th: 311 Logical expressions with double values in MATLAB classify as true everything that is non-zero (like 1 and 2) and everything that is zero as false. You need to add a test after the while loop to see if you broke out, in which case you can add another break do get out of the for-loop. (1 || 2) will always be true and therefore the while loop is never entered. Count the number of lines of code in the file magic.m. what i want is, when the result value does not change for 25 . the statements only if all elements in the matrix are true (nonzero). To achieve variable speed operations, the quite simple open-loop V/Hz control is largely utilized. Which ability is most related to insanity: Wisdom, Charisma, Constitution, or Intelligence? Sylvia's kitchen antioch ca. If you want. ur syntax work, although I don't understand it! Asking for help, clarification, or responding to other answers. Reload the page to see its updated state. >> resolution_check=0; mX_check=1; Nx=1000; It will loop WHILE Nx<5000, which is why they call it a while loop. https://www.mathworks.com/matlabcentral/answers/50713-how-to-make-two-conditions-for-a-while-loop, https://www.mathworks.com/matlabcentral/answers/50713-how-to-make-two-conditions-for-a-while-loop#answer_61883, https://www.mathworks.com/matlabcentral/answers/50713-how-to-make-two-conditions-for-a-while-loop#answer_168022, https://www.mathworks.com/matlabcentral/answers/50713-how-to-make-two-conditions-for-a-while-loop#comment_266170, https://www.mathworks.com/matlabcentral/answers/50713-how-to-make-two-conditions-for-a-while-loop#comment_445684, https://www.mathworks.com/matlabcentral/answers/50713-how-to-make-two-conditions-for-a-while-loop#comment_901350, https://www.mathworks.com/matlabcentral/answers/50713-how-to-make-two-conditions-for-a-while-loop#answer_827899. Does the 500-table limit still apply to the latest version of Cassandra? 'OR' implies either thing being TRUE the expression is TRUE while AND means both (or all) must be true before the composite expression is. Effect of a "bad grade" in grad school applications. sites are not optimized for visits from your location. rev2023.5.1.43404. EP2: 2.8569 To skip the rest of create compound expressions. Adoption a teenager s baby shower. Here is my while loop. The loop will continue if the condition is met, and break if the condition (s) is not met. end. It WILL enter the loop and keep going until Nx>=5000 or one of the other conditions fails. Since && and || consistently Web browsers do not support MATLAB commands. So mX_check. The code is given below. Nitro 911 cdc 1999. is true. MathWorks ist der fhrende Entwickler von Software fr mathematische Berechnungen fr Ingenieure und Wissenschaftler. Vous avez cliqu sur un lien qui correspond cette commande MATLAB: Pour excuter la commande, saisissez-la dans la fentre de commande de MATLAB. That seems to me to be the easiest for the reader to follow and the most intuitive. This means using one . Other MathWorks country sites are not optimized for visits from your location. 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. The problem is the loop is updating values for only once and after that its returning the same value. It is an error when i try to run it. in the any function. Con I do condition OR condition in a while loop? while loop is similar to a dowhile loop How do I make a while loop iterate again if the condition has changed? not need to evaluate the second part of the expression, which would Copy. I can make the prompts appear but what I want to do is unless the user inputs 'yes' or 'no' they will continually be asked if today is their birthday. 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. When a gnoll vampire assumes its hyena form, do its HP change? or ~). 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 If it fits, a message appears. Reload the page to see its updated state. (resolution_check<8) & (mX_check>0.1) & (Nx<5000). If the answer corresponds to any of the strings, the array (called CheckAns) contains a 1 and the sum is different than 0; otherwise the sum equals 0 so the loop continues. sites are not optimized for visits from your location. Reload the page to see its updated state. To programmatically exit the loop, use a break statement. while You may receive emails, depending on your. MathWorks is the leading developer of mathematical computing software for engineers and scientists. Choose a web site to get translated content where available and see local events and offers. Error 2: Since the && is evaluated before '||, your loop will only end if both sides are false. Reload the page to see its updated state. (testPerformance > 9 && valperformance >9), I think this will keep repeating the loop not stopping it. while expression, statements, Vous possdez une version modifie de cet exemple. Can I use my Coinbase address to receive bitcoin? Based on your location, we recommend that you select: . the expression is false. Counting and finding real solutions of an equation. Is this plug ok to install an AC condensor? and repeats the execution of a group of statements in a loop while Tags while loop; while loop to repeat when condition Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. R : How to fix a while loop with multiple conditions returning an errorTo Access My Live Chat Page, On Google, Search for "hows tech developer connect"I prom. Using the or logical operator would mean that user_input should be 256, 128 and 64 at the same time to break the loop. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. to understand how to move between the two thought models. What should I follow, if two altimeters show different altitudes? Which ability is most related to insanity: Wisdom, Charisma, Constitution, or Intelligence? (testPerformance > 9 && valperformance >9), I think this will keep repeating the loop not stopping it. Share. The while loop does not take an expression describing the abortion prerequisites, but those for continuation. Error 1: You wrote Ea0 two times, but surely meant to write Ea1 in the second sub expression. What you are describing above is another expression, where you want. Ctrl+C. the expression is false. What you are describing above is another expression, where you want all sub expressions to hold true for the loop to continue: Theme Copy I would like to stop the iteration when these 2 conditions are met. Note that currently, the value of a is 10. ismemeber seems like the best way since I need something that will act as if it were an ||, not an &&. It is an error when i try to run it. Thank you for your help. sites are not optimized for visits from your location. thank u for ur reply but i'm confused! I don't see where anything is done with the intermediate parameter values. Does a password policy with a restriction of repeated characters increase security? That's a different condition than you'd outlined before (and, admittedly, I skimmed over it earlier). What is loop in MATLAB? - well that's just not true. But, the, is the same logic just in one statement and as the, dpb is right - that is incorrect syntax. offers. respectively. 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. Games site template. while evaluates the conditional expression at the All I'm trying to do is create a prompt to ask the user if today is their birthday and if they say yes it'll wish them happy birthday and if they say no it'll say "that's too bad". offers. Skip blank lines and comments using a continue statement. Other MathWorks country You can use it for multiple conditions in your while loop. Ubuntu won't accept my choice of password. Making statements based on opinion; back them up with references or personal experience. It is used to repeat the number of statements or a statement when the given condition is true. result in an undefined function error. Thanks If you use, How a top-ranked engineering school reimagined CS curriculum (Ep. practice to use && and || instead Otherwise, the expression is false. Based on your location, we recommend that you select: . The first part of the expression evaluates to false. while loop to repeat when condition Find centralized, trusted content and collaborate around the technologies you use most. Ctrl+C. if we write 2 times end then this is an error, You may receive emails, depending on your. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. beginning of the loop rather than the 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. You may receive emails, depending on your. For me it is strange. while loop is similar to a dowhile loop the instructions in the loop and begin the next iteration, use a continue statement. I'm making an application for L'hopitals rule so I need a while loop whenever the limit of f(x) and g(x) are both 0. You can use it for multiple conditions in your while loop. end evaluates an expression, So effectively you have to turn your thoughts around and describe what has to be true to continue. The code is given below. Find the treasures in MATLAB Central and discover how the community can help you! (imag (left) ~= 0 && real (left) == 0) % If the check is to ensure, it is only imaginary number. An expression can include relational operators Making statements based on opinion; back them up with references or personal experience. 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." MathWorks est le leader mondial des logiciels de calcul mathmatique pour les ingnieurs et les scientifiques. thank u for ur reply but i'm confused! I would like to stop the iteration when these 2 conditions are met. I'm making an application for L'hopitals rule so I need a while loop whenever the limit of f(x) and g(x) are both 0. The while loop does not take an expression describing the abortion prerequisites, but those for continuation. I would like to stop the iteration when these 2 conditions are met. Matlab while loop with multiple conditions. The usage of || or && depends on the condition, you wanted. 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). What if it's 0.2 (meaning continue to run) but resolution_check is more than 8 (meaning to stop/break)? Choose a web site to get translated content where available and see local events and offers. However, It is an error when i try to run it. (testPerformance > 9 && valperformance >9), I think this will keep repeating the loop not stopping it. Is it safe to publish research papers in cooperation with Russian academics? offers. while Short story about swapping bodies as a job; the person who hires the main character misuses his body. end. What you are describing above is another expression, where you want. 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)). while expression, statements, yes/no/etc.). Not the answer you're looking for? Connect and share knowledge within a single location that is structured and easy to search. Edited: Wayne King on 13 Oct 2012. Count the number of lines of code in the file magic.m. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. Since && and || consistently The symbol & is the and logical operator. Thanks for contributing an answer to Stack Overflow! Unable to complete the action because of changes made to the page. Accelerating the pace of engineering and science. How can it rectify so that it only executes for only values within the given boundaries only. mX_check <= 0.1. Did the Golden Gate Bridge 'flatten' under the weight of 300,000 people in 1987? Accelerating the pace of engineering and science. You need the == equals. Choose a web site to get translated content where available and see local events and short-circuit in conditional expressions and statements, it is good The MATLAB For example. Not the answer you're looking for? OR. sites are not optimized for visits from your location. It always checks the condition of the loop body before executing it. Therefore, MATLAB does Error 2: Since the && is evaluated before '||, your loop will only end if both sides are false. Use a while loop to calculate factorial(10). If you want. How to create for loop for monthly budget program? You have a modified version of this example. 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. Unable to complete the action because of changes made to the page. each while statement requires an end keyword. In order to compare multiple strings at once, you can use strcmp with the answer provided by the user and use a cell array containing the strings you are looking for (i.e. Unable to complete the action because of changes made to the page. operators (such as &&, ||, Accelerating the pace of engineering and science. 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. AND | Short-Circuit Copy. The syntax for the while loop is as below. Is there any known 80-bit collision attack? Content Discovery initiative April 13 update: Related questions using a Review our technical responses for the 2023 Developer Survey, Syntax for a single-line while loop in Bash, Multiple conditions for a Do..While Loop in Java, How to write while loop inside while in C#. in MATLAB? Based on your location, we recommend that you select: . Improve this answer. So if resolution_check >= 8 or mX_check <= 0.1 then the condition is not true and it will break immediately. (testPerformance > 9 & valperformance >9). SIG2: 0.0073 in other programming languages, such as C and C++. Let me tell you what happens during the loop. You clicked a link that corresponds to this MATLAB command: Run the command by entering it in the MATLAB Command Window. This function fully supports thread-based environments. You may receive emails, depending on your. Loops in MATLAB FOR Loop. If it does not, the dialog box pops up again. offers. Anom Sulardi on 17 Jun 2020 while (testPerformance > 9 && valperformance >9) end % other code.. end Sign in to comment. Both these two should met. Otherwise, from left to right, adhering to operator precedence rules. conditional expression inside the loop. 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". Personally I'd do it like dpb showed last, with the "if" test inside the while loop and break out if it's true. if Nx reaches 5000 loop breaks no matter what resolution or mX are. So effectively you have to turn your thoughts around and describe what has to be true to continue. dowhile loop above by using a MATLAB Has the cause of a rocket failure ever been mis-identified, such that another launch failed due to the same problem? The while loop does not take an expression describing the abortion prerequisites, but those for continuation. What positional accuracy (ie, arc seconds) is necessary to view Saturn, Uranus, beyond? while (testPerformance > 9 & valperformance >9) ii = ii+1; in MATLAB? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Connect and share knowledge within a single location that is structured and easy to search. Accelerating the pace of engineering and science, MathWorks es el lder en el desarrollo de software de clculo matemtico para ingenieros, (Ea0 >= 0.01)&&(Ea0 >= 0.01)||(Sr >= 10^-4), This loop keeps on going even though the first part. user_input == conditional_value returns an array composed of 1s and 0s depending on if values of conditional_values match with user_input. 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? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Generic Doubly-Linked-Lists C implementation. https://la.mathworks.com/matlabcentral/answers/279526-multiple-conditions-for-while-loop, https://la.mathworks.com/matlabcentral/answers/279526-multiple-conditions-for-while-loop#answer_218332, https://la.mathworks.com/matlabcentral/answers/279526-multiple-conditions-for-while-loop#comment_359630, https://la.mathworks.com/matlabcentral/answers/279526-multiple-conditions-for-while-loop#comment_359669, https://la.mathworks.com/matlabcentral/answers/279526-multiple-conditions-for-while-loop#comment_1261408. While loop starts and the condition is less than 20. Description. Let's check all these loops in Matlab: Loops in MatLab While loop in matLab. An expression can include relational operators Based on your location, we recommend that you select: . sorry I meant Ea1 yeah! Therefore, MATLAB does Other MathWorks country sites are not optimized for visits from your location. ((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. syms x. What were the most popular text editors for MS-DOS in the 1980s? An other way to go, proposed by Luis Mendo, is to use any. http://www.mathworks.com/help/releases/R2016a/matlab/matlab_prog/operator-precedence.html. For example. SIG3: 0.3392. Again you've removed a conditional operator between the two logical operations. However, how is while ((Ea0 >= 0.01) vertical slash vertical slash (Ea1 >= 0.01)) && (Sr >= 10^-4) equal to (Ea0 >= 0.01)&&(Ea1 >= 0.01)" or "(Sr >= 10^-4) ". For You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. in MATLAB? Asking for help, clarification, or responding to other answers. https://au.mathworks.com/matlabcentral/answers/279526-multiple-conditions-for-while-loop, https://au.mathworks.com/matlabcentral/answers/279526-multiple-conditions-for-while-loop#answer_218332, https://au.mathworks.com/matlabcentral/answers/279526-multiple-conditions-for-while-loop#comment_359630, https://au.mathworks.com/matlabcentral/answers/279526-multiple-conditions-for-while-loop#comment_359669, https://au.mathworks.com/matlabcentral/answers/279526-multiple-conditions-for-while-loop#comment_1261408. when the user presses the button the while loop start calculations to get ' result'. AND | Short-Circuit 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. in MATLAB? 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. more information, see Run MATLAB Functions in Thread-Based Environment. more information, see Run MATLAB Functions in Thread-Based Environment. Error 2: Since the && is evaluated before '||, your loop will only end if both sides are false. To mimic the behavior of a dowhile loop, set the initial Sebastian Arteaga on 9 Nov 2021 (testPerformance > 9 & valperformance >9). Matlab offers the following kinds of loops that handle the requirement of looping a statement. Within the conditional expression of a whileend block, And what does " at the same time mX_check should be less than 0.1" mean? Based on your location, we recommend that you select: . Then, exit the loop using a break statement. for example , let a variable called 'result'. NESTED Loops. Respected sir, I am facing problem in executing while loop with multiple conditions. while evaluates the conditional expression at the Do you want to open this example with your edits? As IA notes, then you need a compound expression which apparently is where you're having syntax issues. This function fully supports thread-based environments. The while loop does not take an expression describing the abortion prerequisites, but those for continuation. practice to use && and || instead (imag (left) ~= 0) % If the check is only to ensure if there is an imaginary content, implies value could be complex. sorry I meant Ea1 yeah! (such as < or ==) and logical MathWorks is the leading developer of mathematical computing software for engineers and scientists. loop. Amazon book deal kindle. I would like to stop the iteration when these 2 conditions are met. https://fr.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions, https://fr.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions#answer_204270, https://fr.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions#comment_331640, https://fr.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions#comment_331652, https://fr.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions#comment_331677, https://fr.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions#answer_204272, https://fr.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions#comment_331653, https://fr.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions#answer_204276, https://fr.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions#comment_331696, https://fr.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions#comment_331697, https://fr.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions#comment_331701, https://fr.mathworks.com/matlabcentral/answers/261622-while-loop-with-multiple-conditions#comment_331738. MATLAB evaluates compound expressions Description. Hi there I am trying to impose a while loop with two conditions; Theme Copy while (L2normpercentold>=tol)&& (any (Diffpart1>0.0001)) However I get the following error; ??? MathWorks is the leading developer of mathematical computing software for engineers and scientists. Find the treasures in MATLAB Central and discover how the community can help you! sites are not optimized for visits from your location. Why are players required to record the moves in World Championship Classical games? Choose a web site to get translated content where available and see local events and while expression, statements, end evaluates an expression , and repeats the execution of a group of statements in a loop while the expression is true. So if resolution_check >= 8 or mX_check <= 0.1 then the condition is not true and it will break immediately. Do you continue to run, or do you break? the expression is true. This behavior is the same as && and ||, Choose a web site to get translated content where available and see local events and offers. Generate C and C++ code using MATLAB Coder. 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. beginning of the loop rather than the if the condition is true for that period of time, do what ever is in the if statement. Based on your location, we recommend that you select: . from left to right, adhering to operator precedence rules. as short-circuit operators. When nesting a number of while statements, each while statement requires an end keyword. 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? offers. Accelerating the pace of engineering and science. sites are not optimized for visits from your location. Multiple conditions using while loop. Interpreting non-statistically significant results: Do we have "no evidence" or "insufficient evidence" to reject the null? loop. That's a lot of words so here is the code: Thanks for contributing an answer to Stack Overflow! Make a loop with multiple conditions the correct. For Skip blank lines and comments using a continue statement. The sloppy terminology is preventing us from figuring out what to use, OR or AND. EP3: 21.4660 So effectively you have to turn your thoughts around and describe what has to be true to continue. The loop will continue if the condition is met, and break if the condition (s) is not met. logical operators & and | behave example. The MATLAB while loop is similar to a do.while loop in other programming languages, such as C and C++. Nx increases, resolution increases and mX decreases. Find centralized, trusted content and collaborate around the technologies you use most. So if resolution_check >= 8 or mX_check <= 0.1 then the condition is not true and it will break immediately. https://la.mathworks.com/matlabcentral/answers/50713-how-to-make-two-conditions-for-a-while-loop, https://la.mathworks.com/matlabcentral/answers/50713-how-to-make-two-conditions-for-a-while-loop#answer_61883, https://la.mathworks.com/matlabcentral/answers/50713-how-to-make-two-conditions-for-a-while-loop#answer_168022, https://la.mathworks.com/matlabcentral/answers/50713-how-to-make-two-conditions-for-a-while-loop#comment_266170, https://la.mathworks.com/matlabcentral/answers/50713-how-to-make-two-conditions-for-a-while-loop#comment_445684, https://la.mathworks.com/matlabcentral/answers/50713-how-to-make-two-conditions-for-a-while-loop#comment_901350, https://la.mathworks.com/matlabcentral/answers/50713-how-to-make-two-conditions-for-a-while-loop#answer_827899. This behavior is the same as && and ||, And you have && so if any one of those is not true, the loop will quit. Reload the page to see its updated state. Otherwise, end evaluates an expression, Why is it shorter than a normal address? MathWorks est le leader mondial des logiciels de calcul mathmatique pour les ingnieurs et les scientifiques.

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