Did an AI-enabled drone attack the human operator in a simulation environment? If you post this as new question, we will write some answers about how you can achieve, what you want. You can also select a web site from the following list. Finding values of x for a given y when approaching a limit, Building a safer community: Announcing our new Code of Conduct, Balancing a PhD program with a startup career (Ep. Does anyone have a solution on this? Xidx = x_bluesignal(idx); may work if there is an entered data point at y=50.05 (use a tolerance as in the above comments if this is a calculated value), the interp method will work regardless, Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Should convert 'k' and 't' sounds to 'g' and 'd' sounds when they follow 's' in a word for pronunciation? When the fn is discrete: I have tried interp1, however I get the error that it is not strictly monotonic increasing because of the many values that are close to zero. to find the searched points. I can provide an answer to saving the arrays for later use and I can think of three approaches to this. wisely avoids.) Unable to complete the action because of changes made to the page. Is it possible to raise the frequency of command input to the processor in this way? Navigazione principale in modalit Toggle. How can I find the value of y given x=42.5 I know y is 4 by looking at the plot but is there away to calculate the y value directly. Does the policy change for AI-generated content affect users who (want to) plot two signals with different axis and limits in matlab, Representing and solving a maze given an image, Curve fit with three points with a given slope. In the absence of the data, getting an independent variable valuex 'x' from an dependent variable value 'y' is relatively straightforward. I have plotted a Matlab graph using a long matrix. 3) Create a matrix with the results where each row of the matrix contains the data you want. What do the characters on this CCTV lens mean? Was the breaking of bread in Acts 20:7 a recurring activity that the disciples did every first day and was this a church service? It should be between 6-7. Learn more about graph, find point . i have a very simple question but i can't find my wrong. What's the purpose of a convex saw blade? In your case, a tolerance might not work as well because you will not know what that tolerance should be. can you please help with that coding, the y value is not exatcly as the x value when i plot the graph. https://la.mathworks.com/matlabcentral/answers/258556-how-to-i-find-a-x-value-from-a-given-y, https://la.mathworks.com/matlabcentral/answers/258556-how-to-i-find-a-x-value-from-a-given-y#answer_201946, https://la.mathworks.com/matlabcentral/answers/258556-how-to-i-find-a-x-value-from-a-given-y#comment_327032, https://la.mathworks.com/matlabcentral/answers/258556-how-to-i-find-a-x-value-from-a-given-y#comment_769756, https://la.mathworks.com/matlabcentral/answers/258556-how-to-i-find-a-x-value-from-a-given-y#comment_1058441, https://la.mathworks.com/matlabcentral/answers/258556-how-to-i-find-a-x-value-from-a-given-y#comment_1379427, https://la.mathworks.com/matlabcentral/answers/258556-how-to-i-find-a-x-value-from-a-given-y#answer_351806. So i need to get first 4.676 but i can't get this x value on given y value. You may receive emails, depending on your. Seleccione un pas/idioma para obtener contenido traducido, si est disponible, y ver eventos y ofertas de productos y servicios locales. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. What is the name of the oscilloscope-like software shown in this screenshot? How to extract X value given Y value from graph. Setting the derivative to 0 will help you. Create a matrix M like. point1=(40,5) and point2=(50,1). I've been doing some research regarding this but I can't seem to find a solution for when I want to find the X-value given Y. Cambiar a Navegacin Principal. can you please help with that coding, the y value is not exatcly as the x value when i plot the graph. The find () function in MATLAB is used to find the indices and values of non-zero elements or the elements which satisfy a given condition. I use fzero (fzero(function-yvalue)) however I get a lot of NaN's. Note that the diagram of x=[1,2,3], y = [0,1,0] is a triangle also. Were you able to get it to work? How to write a code which can decrease the range of the answer until we get the right value? how to get the x value for a given y value? Again, I'm trying to pick out x values for a given y where y is very small (approaching 0). Segn su ubicacin geogrfica, recomendamos que seleccione: . To subscribe to this RSS feed, copy and paste this URL into your RSS reader. How to say They came, they saw, they conquered in Latin? As @obchardon pointed out in the comments, you want to interpolate on the x-value, not the y-value. ), Enabling a user to revert a hacked change in their email. Accelerating the pace of engineering and science, MathWorks leader nello sviluppo di software per il calcolo matematico per ingegneri e ricercatori, Navigazione principale in modalit Toggle. Tambin puede seleccionar uno de estos pases/idiomas: Seleccione China (en idioma chino o ingls) para obtener el mejor rendimiento. Say I want to find the value of X given Y=-5, vectors were not the same sizes, so I added, , then added a small amount to the duplicated element in. How to say They came, they saw, they conquered in Latin? Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. Were you able to get it to work? Does the policy change for AI-generated content affect users who (want to) How can I ask matlab to give me the value of y if I input the value of x? Asking for help, clarification, or responding to other answers. There is an analytical solution also, but you can use. When I fit a two-term gaussian: Here is a sample code, in which the y-values are produced from a perturbed Gaussian. Can I infer that Schrdinger's cat is dead without opening the box, if I wait a thousand years? 576), AI/ML Tool examples part 3 - Title-Drafting Assistant, We are graduating the updated button styling for vote arrows. The code first takes the difference in the, so the indices will line up. Why is 24.0000 not equal to 24.0000 in MATLAB? Is there any evidence suggesting or refuting that Russian officials knowingly lied that Russia was not going to attack Ukraine? Symbolic limit calculation, numeric value desired. Find the treasures in MATLAB Central and discover how the community can help you! Accelerating the pace of engineering and science, MathWorks es el lder en el desarrollo de software de clculo matemtico para ingenieros. (1-5)/(50-40) =-0.4, PS: I'm using octave 3.8.1 which is like matlab, Yes, let's first find the equation of the line, Notice, the equation of the line passing through the points: $(40, 5)$ & $(50, 1)$ is given as $$y-5=\frac{5-1}{40-50}(x-40)$$ $$y-5=\frac{-2}{5}(x-40)$$ Now, setting $x=42.5$, we get y-coordinate $$y-5=\frac{-2}{5}(42.5-40)$$ $$y=-\frac{2}{5}(2.5)+5$$$$=5-1=4$$ $$\bbox[5px, border:2px solid #C0A000]{\color{red}{y=4}}$$. I have plotted a Matlab graph using a long matrix. Insufficient travel insurance to cover the massive medical expenses for a visitor to US? How can this work? Was the breaking of bread in Acts 20:7 a recurring activity that the disciples did every first day and was this a church service? The relational expression can be used in conjunction with find to find the indices of elements that meet the given condition. Why does bunched up aluminum foil become so extremely hard to compress? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Is it possible to calculate limit points? idx = find(y_bluesignal == 50.05); Yes they overall want the green y value but the initial problem was how to get xvalue, Spline interpolation in matlab in order to predict value, Extracting x value given y threshold from polyfit plot (Matlab), Building a safer community: Announcing our new Code of Conduct, Balancing a PhD program with a startup career (Ep. How can I find the value of y given x=42.5 x(fitresult==10000) is not working. Import complex numbers from a CSV file created in MATLAB. My first guess into how to solve this was: xval = fzero([cfit - y], x0); However this does not work as cfit do not recogn. Find the treasures in MATLAB Central and discover how the community can help you! Please check that it follows now your intention. 0 Comments How to add a local CA authority on an air-gapped host of Debian. Try soemthing like this Theme Copy x = linspace (0, 20, 201); y = besselj (0, x); yval = linspace (-0.2, 0.2, 6); for k1 = 1:numel (yval) zxi = find (diff (sign (y-yval (k1)))); for k2 = 1:numel (zxi) So, In addition to what @UnbearableLightness said, you can also use. Other MathWorks country sites are not optimized for visits from your location. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. create a new vector in matlab based on a limit, calculating the function limit interatively, How to use integration limits correctly (Matlab). Based on your location, we recommend that you select: . You may receive emails, depending on your. I have two signals, one same x axes and two signals value on y axis. ). (When) do filtered colimits exist in the effective topos? How much of the power drawn by a chip turns into heat? I am looking to find the code which gives me an x value from the line graph given a y. Hi, how can I do this with a fit result curve? Skip to content 'Cause it wouldn't have made any difference, If you loved me. In your case, a tolerance might not work as well because you will not know what that tolerance should be. https://la.mathworks.com/matlabcentral/answers/516295-how-to-find-x-value-for-a-given-y, https://la.mathworks.com/matlabcentral/answers/516295-how-to-find-x-value-for-a-given-y#answer_424862. You may receive emails, depending on your. with also significant one-order speed improvement. Is there a faster algorithm for max(ctz(x), ctz(y))? Also, please add any code you have used to try and solve your problem. How to I find a x value from a given y?. Unable to complete the action because of changes made to the page. What do the characters on this CCTV lens mean? Remember that you evaluate x at some time steps only and rounding errors have to be considered also. By contrast, in Boolean logic, the truth values of variables may only be the integer values 0 or 1.. To learn more, see our tips on writing great answers. How can I change the latex source to obtain undivided pages? In Germany, does an academic position after PhD have an age limit? Los sitios web de otros pases no estn optimizados para ser accedidos desde su ubicacin geogrfica. Why is it "Gaudeamus igitur, *iuvenes dum* sumus!" How do I find values close to a given value? Find centralized, trusted content and collaborate around the technologies you use most. In base alla tua area geografica, ti consigliamo di selezionare: . x(fitresult==10000) is not working. I am looking to find the code which gives me an x value from the line graph given a y. Hi, how can I do this with a fit result curve? Find the treasures in MATLAB Central and discover how the community can help you! https://au.mathworks.com/matlabcentral/answers/244890-find-x-value-given-y, https://au.mathworks.com/matlabcentral/answers/244890-find-x-value-given-y#answer_193589, https://au.mathworks.com/matlabcentral/answers/244890-find-x-value-given-y#comment_311977, https://au.mathworks.com/matlabcentral/answers/244890-find-x-value-given-y#comment_311980, https://au.mathworks.com/matlabcentral/answers/244890-find-x-value-given-y#comment_312226, https://au.mathworks.com/matlabcentral/answers/244890-find-x-value-given-y#comment_312228, https://au.mathworks.com/matlabcentral/answers/244890-find-x-value-given-y#comment_312240, https://au.mathworks.com/matlabcentral/answers/244890-find-x-value-given-y#answer_193591, https://au.mathworks.com/matlabcentral/answers/244890-find-x-value-given-y#comment_710637. element, so the vector is now monotonically increasing. To learn more, see our tips on writing great answers. How can this work? Place the following line after your conditional statements to save the array to a matfile named saved_array_k.mat where k is the iteration number. Select the China site (in Chinese or English) for best site performance. An inequality for certain positive-semidefinite matrices. The term fuzzy logic was introduced with . 576), AI/ML Tool examples part 3 - Title-Drafting Assistant, We are graduating the updated button styling for vote arrows. First story of aliens pretending to be humans especially a "human" family (like Coneheads) that is trying to fit in, maybe for a long time? You can also select a web site from the following list. to find the searched points. I am looking to find the code which gives me an x value from the line graph given a y. Saltar al contenido. My goal is to find the FWHM of those peaks. 2 Link Translate Helpful (0) The 'x' and 'y' vectors were not the same sizes, so I added 25 to 'x', then added a small amount to the duplicated element in 'y' and did the interpolation: Theme Copy x = [25 50 100 200 500 1000 2000 5000 10000 20000]; y = [ -0.1755 -0.1755 -0.9151 -2.8534 -8.4043 -13.1515 -20.0000 -27.5350 -33.9794 -40.0000]; Asking for help, clarification, or responding to other answers. I can get just y value of blue, and i need to first get x value 4.676. Unable to complete the action because of changes made to the page. Example: matlab code: Select the China site (in Chinese or English) for best site performance. (This will work even if there are long series of consecutive equal entries.). 576), AI/ML Tool examples part 3 - Title-Drafting Assistant, We are graduating the updated button styling for vote arrows. I have plotted a Matlab graph using a long matrix. It sorts Y, and then in the case of equal entries in Y, it will add a tiny offset. Making statements based on opinion; back them up with references or personal experience. 0.5*max(x). I need to find the y value of green signal on the black line, so where y value of blue signal is 50.05. Unable to complete the action because of changes made to the page. Negative R2 on Simple Linear Regression (with intercept), Change of equilibrium constant with respect to temperature. Remember that you evaluate x at some time steps only and rounding errors have to be considered also. Other MathWorks country sites are not optimized for visits from your location. ). https://it.mathworks.com/matlabcentral/answers/463447-how-to-get-the-x-value-for-a-given-y-value, https://it.mathworks.com/matlabcentral/answers/463447-how-to-get-the-x-value-for-a-given-y-value#answer_376126, https://it.mathworks.com/matlabcentral/answers/463447-how-to-get-the-x-value-for-a-given-y-value#comment_707626, https://it.mathworks.com/matlabcentral/answers/463447-how-to-get-the-x-value-for-a-given-y-value#answer_376130, https://it.mathworks.com/matlabcentral/answers/463447-how-to-get-the-x-value-for-a-given-y-value#comment_1301228, https://it.mathworks.com/matlabcentral/answers/463447-how-to-get-the-x-value-for-a-given-y-value#comment_1301973. https://www.mathworks.com/matlabcentral/answers/463447-how-to-get-the-x-value-for-a-given-y-value, https://www.mathworks.com/matlabcentral/answers/463447-how-to-get-the-x-value-for-a-given-y-value#answer_376126, https://www.mathworks.com/matlabcentral/answers/463447-how-to-get-the-x-value-for-a-given-y-value#comment_707626, https://www.mathworks.com/matlabcentral/answers/463447-how-to-get-the-x-value-for-a-given-y-value#answer_376130, https://www.mathworks.com/matlabcentral/answers/463447-how-to-get-the-x-value-for-a-given-y-value#comment_1301228, https://www.mathworks.com/matlabcentral/answers/463447-how-to-get-the-x-value-for-a-given-y-value#comment_1301973. Hi, have the same problem you have. Since your data is already presented as a numeric vector y, the straightforward find(y
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