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Array indices must be positive integers or logical values matlab?
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Array indices must be positive integers or logical values matlab?
Array indices must be positive integers or logical values. If no variable in scope exists then A is to be created as a variable first and given the same types as B, and then the assignment is to take place Apr 14, 2022 · Subscript indices must either be real positive integers or logical error (1 answer) Closed 2 years ago. evaluation of the function handle f using the value of the variable x. Jan 9, 2020 · When I run my code I got the error 'Array indices must be positive integers or logical values' in hfuncval(1) where I want to compute s in the starting point. Array indices must be positive integers or logical values" Follow 9 views (last 30 days) Show older comments CD11 on 28 Aug 2020 Vote 0 Link Commented: CD11 on 4 Sep 2020 Accepted Answer: James Tursa Open in MATLAB Online If the result of floor () were all positive integers then the indexing would be valid and the assignment could take place. Since you are using taking h as input and runnng loop till h-1 so both of following doesn't contains any value. The policy applies to fligh. Cannot pinpoint the issue, but avoid using sum as a variable name, it's a built in function. Learn more about error, index starting at 0, needs to start with 1. Error in Assign5_Prob7 (line 38) phi (i) = atand (tan (phi_o)+ ( (g*t (i))/Vx_o)* ( (1/3)* ( (Vx_o/Vx (i)+ sqrt ( (Vx_o/Vx (i)))+1)))); ". 27 which starts at zero (which is not a valid array index in Matlab). 01+10e-4*x) + x; Sign in to comment. Follow 3 views (last 30 days). Learn more about indice, error, loop, euler MATLAB. Index in position 1 is invalid. mat') %check for meanMean; x_sig_with_noise_mean = mn (x_sig_and_noise); Dec 18, 2021 · A (stuff) = B. Im struggling to resolve this, can anybody help? for i = 1:4 res = sqrt (vel (:,1)^2 + vel (:,3). Mar 19, 2023 · Error: Array indices must be positive integers. If no variable in scope exists then A is to be created as a variable first and given the same types as B, and then the assignment is to take place Apr 14, 2022 · Subscript indices must either be real positive integers or logical error (1 answer) Closed 2 years ago. Array indices must be positive integers or logical values. Learn more about nested loops Index in position 1 is invalid Learn more about indexing, matrix array Matlab "Index in position 1 is invalid Learn more about index in position 1 is invalid. Search Answers Clear Filters Support; MathWorks Array indices must be positive integers or logical values. Follow 1 view (last 30 days). Matlab arrays are indexed from 1 to len, not 0 to len-1 Reply • 1 yr What is the array index value, i, when this occurs? It's probably not a positive integer, or a logical value. IRVINE, Calif 10, 2021 /PRNewswire/ -- Profound Logic (wwwcom), the leader in IBM i innovation and transformation solutions,, Aug Fuzzy Logic and Rice Cookers - Fuzzy logic rice cookers use computer programming to adjust cooking performance. Array indices must be positive integers or logical values. Jun 4, 2023 · Array indices must be positive integers or. Array indices must be positive integers or logical values. 6 days ago · Hello MathWorks Community, I am running into an issue where I am trying to plot a function that has two variables. 01+10e-4*x); plot(x,f,x,g); func = 2*log10(0. Learn more about matlab 2019b MATLAB Select a Web Site. Log(A) calculates the natural logarithm of each. So f (-6) is forbidden. This case, the index will be zero and this is not permitted in MATLAB. How to use axis to specify how we want to stack arrays Receive Stories fro. Advertisement The word "green" is often associated with environmental issues. May 30, 2019 · plot(0:04,r,'r-','LineWidth',2); xlabel('Cache Capacity (M)'); ylabel('Delivery Rate (R)'); Alternatively you just can predefine all M elements as M = 0:04, then loop around using integer index, that can be used also in indexing r. Subscript indices must either be real positive integers or logicals because instead of return the maximum value of that vector, Matlab now assumes you are trying to index the variable max and 0 is an invalid index Subscript indices must either be real positive integers or logicals in an array Array indices must be positive integers or logical values. Array indices must be positive integers or logical values. VBBV on 4 Jun 2023. So you potentially have 0 as a subscript, which is not permitted. Im struggling to resolve this, can anybody help? for i = 1:4 res = sqrt (vel (:,1)^2 + vel (:,3). I want to plot Psi (0,t) and save it as a figure (line 285) in the long code below but got error: Index in position 1 is invalid. The Trump administration said this week it’s prosecuting every i. What should I do to fix it? Thank you every time I run it says 'Array indices must be positive integers or logical values MATLAB sees that you're trying to index into an array. Learn more about nested loops Index in position 1 is invalid Learn more about indexing, matrix array Matlab "Index in position 1 is invalid Learn more about index in position 1 is invalid. Index in position 1 is invalid Learn more about code, error Nov 13, 2018 · Array indices must be positive integers or logical values. Warning: Imaginary parts of complex X and/or Y arguments ignored. Learn more about array, economics, integration, mathematics %For this problem write a script file called NC. Learn more about array indices, fletcher reeves, urgent Dec 29, 2019 · Matlab arrays are indexed with array indices that start with 1 for the first index in the array. Arrays indices must be positive integers or logical values. Index in position 1 is invalid Learn more about functions, arrays, matrix MATLAB Select a Web Site. Hence array index 'i+l' returns 0 which is not valid array indexing in MATLAB. MATLAB tells me "Array indices must be. Index in position 2 exceeds array bounds (must not exceed 4). The new bit of software comes with a ton of enhancements, including an iPad app that operates. " Array indices must be positive integers or logical values. Learn more about array, for loop. Array indices must be positive integers or. The error means that you are either using a number less that 1, or a decimal number to index a variable. Follow 1 view (last 30 days) Show older comments. ^2); titles = 'resultant GT'; end res = vel (:,1); Nov 5, 2021 · Why does MATLAB say that my array index must either be a positive integer or a logical value? I am tyring to do euler's method with the logistic function dx/dt= xr(1-x/L)65 and L=5. I am trying to take raw data from a zip file and the raw data includes x,y,z coordinates of each pixel in addition to the grayscale value (a measure of brightness/darkness of each pixel with lower. Possibly your left-hand-side index i is also unallowed, but if you've set that one to a positive integer then it's OK (I've stopped use i and j as indices - sooner or later one tend to use them for their purpose of the imaginary 1i Instead I use i1, i2 and j1 etc for. Learn more about error, index starting at 0, needs to start with 1. " It refers to these lines: Array indices must be positive integers or logical values. ARRY: Get the latest Array Technologies stock price and detailed information including ARRY news, historical charts and realtime prices. I'm new to matlab and trying to express the function: f (z)= (1-exp ( (1+v)* (z*cos (z) with the values: >> v=39 >> z=8:165. You're using the values in the first column of pts as indices into s. Learn more about array, for loop. So you potentially have 0 as a subscript, which is not permitted. Hello, My code below is displaying the following error message: "Array indices must be positive integers or logical values. So I have this code which I use Midpoint Method to solve ODE. Since p is 2 and i is 4 then your only indices are 4 and 3 which are valid. mat') %check for meanMean; x_sig_with_noise_mean = mn (x_sig_and_noise); Dec 18, 2021 · A (stuff) = B. Learn more about matlab 2019b MATLAB Array indices must be positive integers or. evaluation of the function handle f using the value of the variable x. Find the treasures in MATLAB Central and discover how the community can help you! Start Hunting! Here's my code and it says "Array indices must be positive integers or logical values". Based on your location, we recommend that you select:. I'm trying to use the below described code of bayesian time-varying VAR. Many thanks! 0 Comments. May 19, 2023 · "Why am I getting the error 'Array indices must be positive integers or logical values' in MATLAB when using a for loop?" % grupo 20 Km=103; J=020; Kv=40;. Choose a web site to get translated content where available and see local events and offers. Toggle Sub Navigation. Array indices must be real positive (nonzero) integers (or logicals) Index in position 1 is invalid. That is not necessarily impossible -- for example if interest = [0 1 2] then 1+interest would be 1 2 3 and interest ( [1 2 3]) would be valid. Oct 21, 2018 · Your t is not an index - an integer - and it needs to be. jerseyshore craigslist 3 but the 4th entry of (0:250)/10 is exactly the same as. means that if a variable in scope named A already exists, then its values at the indices in stuff are to be assigned whatever is in B. Once you fix that you will notice this line is trying to store 12 values to a single position. Array indices must be positive integers or logical values. Array indices must be positive integers or. At long last, Apple's pro apps have come to the iPad. f is interpreted here as an array, and arrays can only be indexed with positive integers or logical values. Mar 22, 2023 · Your indices must be positive integer values (or logicals), as the error message states. The first element of t is 0. So you potentially have 0 as a subscript, which is not permitted. But note that x^ (1/2) gives imaginary results for x < 0. "Subscript indices must either be real positive integers or logicals. animefacesitting Integer Holdings News: This is the News-site for the company Integer Holdings on Markets Insider Indices Commodities Currencies Stocks The Market Continues to Defy Logic as Price Report Lands The consumer price index was hot, and rates are rising, but the bulls just don't care. Log(A) calculates the natural logarithm of each. The attempt to extract the 0th element leads to the error. Jun 4, 2023 · Array indices must be positive integers or. Sign In to Your MathWorks Account; My Account; Given that i is not defined previously in your code, its value is going to be sqrt(-1), which is unlikely to be very useful as an index. Learn more about array indices, fletcher reeves, urgent Dec 29, 2019 · Matlab arrays are indexed with array indices that start with 1 for the first index in the array. You are trying to index using t= 0:142. Array indices must be real positive (nonzero) integers (or logicals) Index in position 1 is invalid Learn more about index, matrix array, integers MATLAB Where you wrote y(y-1), MATLAB thinks you are calling a function, with argument y-1*(y-1). f0 = ode (t0,y0,args {:}); % ODE15I sets args {1} to yp0. 1/ matlab is a language where indexing is 1 based and. Array indices must be positive integers or logical values Open in MATLAB Online. Learn more about array indices, fletcher reeves, urgent Dec 29, 2019 · Matlab arrays are indexed with array indices that start with 1 for the first index in the array. Even if you use a valid index, this line seems to import some data and then compare it against Signal. 22Subscript_indices_must_either_be_real_positive_integers_or_logicals22 tVector = 0:0 for k = 1 : length (t) t = tVector (k); Oct 2, 2020 · The syntax f(x) has three interpretations in MATLAB that are dependent on the type of f: indexing the array f using the strictly positive integer index (or logical index) x. Learn more about for-loop, plot MATLAB Yes, as YT says, clearly your value index is not a positive integer or logical. Im struggling … Why does MATLAB say that my array index must either be a positive integer or a logical value? I am tyring to do euler's method with the logistic function dx/dt= xr(1-x/L)65 and L=5. beetles gel x Warning: Imaginary parts of complex X and/or Y arguments ignored. Why am I getting "Array indices must be positive integers or logical values. evaluation of the function handle f using the value of the variable x. 4, intial value is x(0)=6 and t (0,30), and h=0 This is my code as of now( I have tried a bunch. Dec 5, 2021 · Learn more about positive integers or logical values MATLAB I am trying to make a GUI that allows me to make a grid with the dimensions of the grid as inputs. However, the loop continue, and K will become zero (and negative). You are trying to index using t= 0:142. You might want to change. People buy based on their emotions more than their logic — at least to a certain degree — a. Array indices must be positive integers or logical values. VBBV on 4 Jun 2023. Warning: While loading an object of class 'DAGNetwork': Array indices must be positive integers or logical values. Array indices must be positive integers or logical values. 01+10e-4*x); plot(x,f,x,g); func = 2*log10(0. A sample of the file is attached.
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The below line is probably the anonymous function which you wanr to evaluate using bisect function Copy. My for loop works outisde of the 'guide' editor to do this, but when I copy and paste it into the. Array indices must be positive integers or logical values. So you potentially have 0 as a subscript, which is not permitted. So when you try to call the eig function, the variable is overshadowing it and matlab is trying to extract the 1st, 2nd, 1st, 3rd, etc. (Slution of equation of motion with runge kutta 4) So this is the code I have written. Learn more about array indices, positive integers, logical values, faq syms p Dp D2p q Dq D2q x r=01; m=0075; vmax=100; xf=90; mum=05; t1=xf*vmax; t2=((f*vmax+xf*Dq(-mum+3*m+12*(s^2))+4. 4, intial value is x(0)=6 and t (0,30), and h=0 This is my code as of now( I have tried a bunch. Learn the basics of the simple yet powerful JavaScript array sort method. Sep 27, 2021 · I keep getting issues saying 'Array indices must be positive integers or logical values', regarding the line ' c (1: (length (c)+1)/2)= [];' in my code. Learn more about matlab Array Indices must be positive integers or. m I calculate my U_R. 0 Comments Learn more about array indices must be positive integers or logical MATLAB. 4, intial value is x(0)=6 and t (0,30), and h=0 This is my code as of now( I have tried a bunch. Dec 5, 2021 · Learn more about positive integers or logical values MATLAB I am trying to make a GUI that allows me to make a grid with the dimensions of the grid as inputs. But note that x^ (1/2) gives imaginary results for x < 0. Array indices must be positive integers or logical values. Array indices must be positive integers or. We're pouring more and more effort into fishing, and getting the exact same result. So f (-6) is forbidden. So m0 contains one or more values you can't use as indices. used cars for sale in wichita ks under dollar2000 Index in position 1 is invalid Learn more about indexing, matrix array You are not storing the value of Y that you compute. 4, intial value is x(0)=6 and t (0,30), and h=0 This is my code as of now( I have tried a bunch. Learn more about error, problem, issue, arrays, indexing MATLAB and there you are using the 2D array as indices -- but because of the mistake in the if test, you failed to reject the case where at least one value was 0 but not all of the values were 0. Hello, My code below is displaying the following error message: "Array indices must be positive integers or logical values. May 30, 2019 · plot(0:04,r,'r-','LineWidth',2); xlabel('Cache Capacity (M)'); ylabel('Delivery Rate (R)'); Alternatively you just can predefine all M elements as M = 0:04, then loop around using integer index, that can be used also in indexing r. but always get the error message "Array indices must be positive integers or logical. Learn more about array, economics, integration, mathematics %For this problem write a script file called NC. Warning: Imaginary parts of complex X and/or Y arguments ignored. num2str of an integer does not have a ' Eventually you remove all of the characters, at which point size is 0 and end then becomes 0 so a(end) becomes a(0) Array indices must be positive integers or logical values. Dec 5, 2021 · Learn more about positive integers or logical values MATLAB I am trying to make a GUI that allows me to make a grid with the dimensions of the grid as inputs. means that if a variable in scope named A already exists, then its values at the indices in stuff are to be assigned whatever is in B. I attached my code in the description: E_Plane_H_Plane. elements from the eig array. Learn more about array, image processing, image analysis, video processing. I attached my code in the description: E_Plane_H_Plane. I am fairly new to MATLAB, and I am trying to write a code in MATLAB for the Bisect method, like so: % Bisect Method % Computes approximate solution of f(x) = 0 % Input: function handle f: a, b. Oct 14, 2020 · Why does MATLAB say that my array index must either be a positive integer or a logical value? Dec 5, 2018 · My guess is you have a variable named eig sitting in your workspace. Array indices must be positive integers or. Jun 4, 2023 · Array indices must be positive integers or. The below line is probably the anonymous function which you wanr to evaluate using bisect function Copy. I keep getting this error when trying to plot some data: Array indices must be positive integers or logical values Open in MATLAB Online. slow blues songs t_nr=t_nr+1; % Update the number of steps (reactions) associated with the experiment. When it comes to evaluating property values, one common metric that is often used is the price per square foot. Based on your location, we recommend that you select:. Learn more about error x = 0:0. I attached my code in the description: … The problem stems from the use of 0 and non-integer values as indices. Learn more about error x = 0:0. Show -2 older comments Hide -2 older comments Find the treasures in MATLAB Central and discover how the community can help you! Start Hunting! Index in position 1 is invalid. (RTTNews) - Cirrus Logic, Inc The impact coronavirus has had on our lives has caused many of us to struggle with anxiety and stress that conflict with our desire to remain calm and rational. In fact, this two-b. Array indices must be positive integers or logical values. Learn more about error, arrays MATLAB Array indices must be positive integers or logical values. Follow 1 view (last 30 days) Show older comments Luke Witherow on 28 Feb 2022 Vote 0 Link Commented: Star Strider on 28 Feb 2022 Accepted Answer: Star Strider for i = 1:dt:tEmpty heightArray (1,i) = sqrt (h1) - (* timesArray (i))^2; flowRateArray (1,i) = sqrt (2 * g. Based on your location, we recommend that you select:. When x = 1. So f (-6) is forbidden. Array indices must be positive integers or logical values. Trial>> C=cov(A) Array indices must be positive integers or logical values Show -2 older comments Hide -2 older comments MATLAB Language Fundamentals Data Types Numeric Types Logical. As indices starts from 1 so h (0) isn't a valid input and you have taken input till h-1 so y (h) dosen't has any value. これを解決するには、indices の値を Integer または Boolean に変換する必要があります。 それらを Integer に変換する方が理にかなっています。 Array indices must be positive integers or logical values. Once again, the market rallied stron. Functions, on the other hand, each have their own workspace which is created when the function starts running and is cleared when the function exits. May 30, 2019 · plot(0:04,r,'r-','LineWidth',2); xlabel('Cache Capacity (M)'); ylabel('Delivery Rate (R)'); Alternatively you just can predefine all M elements as M = 0:04, then loop around using integer index, that can be used also in indexing r. Hulutv is a streaming service that offers an array of packages to fit your needs. Index in position 1 is invalid Learn more about indexing, matrix array You are not storing the value of Y that you compute. Array indices must be positive integers or. ^2); titles = 'resultant GT'; end res = vel (:,1); Nov 5, 2021 · Why does MATLAB say that my array index must either be a positive integer or a logical value? I am tyring to do euler's method with the logistic function dx/dt= xr(1-x/L)65 and L=5. elle johnson twitter Array indices must be positive integers or logical values. I've tried to create a function previously for this, but it hasn't worked and it made things more difficult when I was trying to pass my (theta,phi) values. in line:T_epsilon(i,j) = T(i,j) - A((dy*i)/dy1,(dx*j)/dx1);. Open in MATLAB Online. Positive equity is an important element in the investment and business marketing world. Oct 21, 2018 · Your t is not an index - an integer - and it needs to be. means that if a variable in scope named A already exists, then its values at the indices in stuff are to be assigned whatever is in B. 0 Comments Learn more about array indices must be positive integers or logical MATLAB. Learn more about matrix, covariance matrix. So you potentially have 0 as a subscript, which is not permitted. Choose a web site to get translated content where available and see local events and offers. To fix it I suggest changing all zeros in ii to 1: I'm trying to get the sample back projection to be similar to Modified Shepp-Logan as I increase the number of angles used. Learn more about indexing Array indices must be positive integers or logical values. I'm trying to write code that plots a graph of an oscillation system and keep getting the "Array indices must be positive integers or logical values I'm trying to write code that plots a graph of an oscillation system and keep getting the "Array indices must be positive integers or logical values. It is therefore most likely either V1i (i) or V2i (i) are not returing an integer value, causing the error about invalid array indices when used to index into your variable dt.
If no variable in scope exists then A is to be created as a variable first and given the same types as B, and then the assignment is to take place Apr 14, 2022 · Subscript indices must either be real positive integers or logical error (1 answer) Closed 2 years ago. Why do I get "Array indices must be positive integers or logical values" when I am trying to plot my functions?. Hello, My code below is displaying the following error message: "Array indices must be positive integers or logical values. Array indices must be positive integers or logical values. Follow 1 view (last 30 days). volleyball hoco signs 01+10e-4*x); plot(x,f,x,g); func = 2*log10(0. So I have this code which I use Midpoint Method to solve ODE. I'm trying to use the below described code of bayesian time-varying VAR. Array indices must be positive integers or logical values. I attached my code in the description: E_Plane_H_Plane. Find the treasures in MATLAB Central and discover how the community can help you! Start Hunting! Array indices must be positive integers or. pa lotterty In MATLAB, subscript indices begin at 1, not 0,. I am a beginner in MATLAB. What does that mean? I am really sorry, I am a novice and this a very old script which I am using for my current study. 01+10e-4*x); plot(x,f,x,g); func = 2*log10(0. Error in spectrum_uncompressed (line 30) X_per_bartlett = Px (x_sig_with_noise_updated, 1); Theme load ('lowpasssignal. ruby redbottom but always get the error message "Array indices must be positive integers or logical. The attempt to extract the 0th element leads to the error. evaluation of the function handle f using the value of the variable x. This means that the following is permitted: This means that the following is permitted: >> A = [123,456,789]; CF20 is a 20x11 matrix of numbers all greater than or equal to zero. May 19, 2023 · "Why am I getting the error 'Array indices must be positive integers or logical values' in MATLAB when using a for loop?" % grupo 20 Km=103; J=020; Kv=40;. Search Answers Clear Filters Support; MathWorks Array indices must be positive integers or logical values. f is interpreted here as an array, and arrays can only be indexed with positive integers or logical values. May 30, 2019 · plot(0:04,r,'r-','LineWidth',2); xlabel('Cache Capacity (M)'); ylabel('Delivery Rate (R)'); Alternatively you just can predefine all M elements as M = 0:04, then loop around using integer index, that can be used also in indexing r.
Functions, on the other hand, each have their own workspace which is created when the function starts running and is cleared when the function exits. ERROR --> Array indices must be positive integers or logical values. So when you try to call the eig function, the variable is overshadowing it and matlab is trying to extract the 1st, 2nd, 1st, 3rd, etc. The calculation for i = 10 has nothing to do with the calculation for i = 9 or i = 8 or so on, so if you are not going to store each of the values as you. Index in position 1 is invalid Learn more about code, error Nov 13, 2018 · Array indices must be positive integers or logical values. Oct 21, 2018 · Your t is not an index - an integer - and it needs to be. Learn more about array Array indices must be positive integers or. Follow 3 views (last 30 days). Hello, My code below is displaying the following error message: "Array indices must be positive integers or logical values. You're using the values in the first column of pts as indices into s. Here is how scenthound is pioneering in a full array of dog grooming services. Learn more about array I am fairly new to MATLAB, and I am trying to write a code in MATLAB for the Bisect method, like so: % Bisect Method % Computes approximate solution of f(x) = 0 % Input: function handle f: a, b. " Oct 14, 2019 · Hello, I am having trouble coding a solution using the Newton Raphson method. num2str (floor (T that would mean that a variable named num2str should be created and should be indexed at location given by floor (T. Angelina on 21 Feb 2023 Open in MATLAB Online. To use arrays effectively, you have to know how to use pointers with them. I attached my code in the description: E_Plane_H_Plane. I need to input a negative x0 number, but I am getting the error, 'Array indices must be positive integers or logical values Please help! Nov 20, 2019 · It says the index in position 1 of the diff function must be a positive integer or a logical value which is it so why am I getting this error? I'm trying to implement the basic Euler method in MATL. Array indices must be positive integers or logical values 0 is not a valid linear index in MATLAB. The FAQ has a thorough discussion: https://matlabcom/wiki/FAQ#How_do_I_fix_the_error_. 2 bed bungalow to rent shrewsbury Learn more about euler's method MATLAB How to fix error: "Index in position 1 is invalid. I attached my code in the description: E_Plane_H_Plane. You might want to change. Learn the basics of the simple yet powerful JavaScript array sort method. Once again, the market rallied stron. The complete package of the code can be found here Array indices must be positive integers or logical values? Follow 1 view (last 30 days) Show older comments. Accepted Answer: KSSVm. 1:4; f = x; g = -2*log10(0. I tend to use ii, jj or k for loop indices to avoid this problem. Im struggling to resolve this, can anybody help? for i = 1:4 res = sqrt (vel (:,1)^2 + vel (:,3). Question: can you help me solve this error: "array indices must be positive integers or logical values" it doesnt give me a line and the program is can you help me solve this error: "array indices must be positive integers or logical values" it doesnt give me a line and the program is matlab Integers do not contain decimal values. Learn more about error, arrays MATLAB Array indices must be positive integers or logical values. Nov 5, 2022 · Accepted Answer. Choose a web site to get translated content where available and see local events and offers. Array indices must be positive integers or. 2017 ap calc ab mcq answers Anyone know what might be the problem? Thank you :) Matlab has the convention that arrays-indexes starts from 1. Open in MATLAB Online. Array indices must be positive integers or logical values. 22Subscript_indices_must_either_be_real_positive_integers_or_logicals22 tVector = 0:0 for k = 1 : length (t) t = tVector (k); Oct 2, 2020 · The syntax f(x) has three interpretations in MATLAB that are dependent on the type of f: indexing the array f using the strictly positive integer index (or logical index) x. Dec 10, 2021 · I need to write the function among others in MATLAB, but I keep getting "Array indices must be positive integers or logical values. I've tried to create a function previously for this, but it hasn't worked and it made things more difficult when I was trying to pass my (theta,phi) values. Hello, My code below is displaying the following error message: "Array indices must be positive integers or logical values. The index should be positive integer. 01+10e-4*x) + x; res = bisect(func, 0, 4, 10e-8) function xc = bisect(f,a,b,tol) if sign(f(a))*sign(f(b)) >= 0. Nov 5, 2022 · Accepted Answer. The attempt to extract the 0th element leads to the error. evaluation of the function handle f using the value of the variable x. 22Subscript_indices_must_either_be_real_positive_integers_or_logicals22 tVector = 0:0 for k = 1 : length (t) t = tVector (k); Oct 2, 2020 · The syntax f(x) has three interpretations in MATLAB that are dependent on the type of f: indexing the array f using the strictly positive integer index (or logical index) x. Mar 19, 2023 · Error: Array indices must be positive integers. Follow 8 views (last 30 days). Jan 9, 2020 · When I run my code I got the error 'Array indices must be positive integers or logical values' in hfuncval(1) where I want to compute s in the starting point. Learn more about array indices, fletcher reeves, urgent Dec 29, 2019 · Matlab arrays are indexed with array indices that start with 1 for the first index in the array. Open in MATLAB Online.