Array indices must be positive integers or logical values

Moved: Walter Roberson on 20 Aug 2022. Accepted Answer: MathWorks Support Team. Why do I get "Array indices must be positive integers or logical values" error when using "angle" function? Theme. Copy. >> z = 22+i. >> a = angle (z) >> z =. 22.0000 + 1.0000i.

Array indices must be positive integers or logical values. Follow 807 views (last 30 days) ... Array indices must be positive integers or logical values.Your model does not have lags, so you cannot set shocks for period 0, only starting in period 1.Array indices must be positive integers or logical values. Follow 13 views (last 30 days) ... array indeces must be positive integers or logical values. That means ..."Array indices must be positive integers or logical values" 0 How to solve the "Array indices must be positive integers or logical values" when using optimization toolbox?Array indices must be positive integers or logical values. ... Array indices must be positive integers or logical values. Follow 31 views (last 30 days)Array indices must be positive integers or logical values. Noticing my example code, all indexes in "AF_tot(theta*10+901)" are positive. If I change part of previous code to following one:

Nevertheless, my guess is that index "k" or "framecito" are starting at value 0 or receiving some non-integer value, when vectors and arrays in MATLALB only have …Array indices must be positive integers or logical values. Follow 178 views (last 30 days) Show older comments Harry Brown on 21 Oct 2018 0 Link Reopened: Walter Roberson on 20 Dec 2018 I am trying to ploy a graph of speed against time. But I keep getting this error. Theme Copy hold on for t = 0:0.1:25 if t < 5Index in position 1 is invalid. Array indices must be positive integers or logical values.I don't know what the value of that expression is because most of those variables are undefined, but given that deltaT is a scalar variable, I would guess that indexing it like that is not what you mean to be doing.Sep 27, 2018 · Index in position 1 is invalid. Array indices must be positive integers or logical values. Array indices must be positive integers or logical values. % (This will output a coefficient in alternating sine,cos for each point) % % First use standard Matlab routine to find Fourier transform of y. % % z contains the complex coefficeints of the Fourier exponential series. % % This section takes the exponential series coefficients and gives ...

yes you're correct,but i 'am still facing a problem to put this into code. what my intension is, I want to subtract two matrices which are not of the same order though. my first matrix T is of order 101 by 101 and the other one A is 1001 by 1001 and i want the resultant matrix E_epsilon to be of order 101 by 101.Accepted Answer. They're not meant to be empty. Going up we see, [V,I] = min ( [Va,Vd], [],2); It's the colum index where a minimum is found. I don't know what Va and Vd are. if they are column vectors then [Va, Vd] only has two columns, and obviously, you're never going to find a minimum in the 3rd column.Array indices must be positive integers or logical values. 0 Comments. Show -1 older comments Hide -1 older comments. Sign in to comment. Sign in to answer this question. Answers (1) Cris LaPierre on 13 Mar 2021. ... Array indices must be positive integers or logical values.Oct 5, 2021 · Array indices must be positive integers or logical values. ... Array indices must be positive integers or logical values. Star Strider on 6 Oct 2021.

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"Why am I getting the error 'Array indices must be positive integers or logical values' in MATLAB when using a for loop?" Theme Copy % grupo 20 Km=1.5; Ra=8; La=0.03; J=0.08; Kg=10; Kt=0.20; Kv=40; T=0.02; syms k; %F2 y F3 A= [0 1 0; 0 0 1; -Kg*Km^2 -Ra*J -La*J]; B= [0; 0; Km]; C= [1 0 0]; sys=ss (A,B,C,0)Apr 23, 2018 · Answers (1) You should probably recheck your formula to see whether the formula asked for indexing at that point, or asked for multiplication. I am not sure why my code is coming up with this: Array indices must be positive integers or logical values. Array indices must be positive integers or... Learn more about error, index starting at 0, needs to start with 1 . ... Array indices must be positive integers or logical values. Follow 5 views (last 30 days) Show older comments. Brooks Corbett on 17 Nov 2019. Vote. 0. Link.Array indices must be positive integers or logical values." in my file. ... am-having-this-error-index-in-position-2-is-invalid-array-indices-must-be-positive ...

"Array indices must be positive integers or... Learn more about array, economics, integration, mathematics %For this problem write a script file called NC.m that implements %the Newton-Cotes method of integration for an arbitrary function f(x).Index in position 1 is invalid. Array indices must be positive integers or logical values.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. Im struggling to resolve this, can anybody hel...1 Answer Sorted by: 2 Here is a minimal example demonstrating your problem: for i=1:10 clear jpgfiles=rand (10,1); %some dummy data to replace your actual …Array indices must be positive integers or logical values. 0 Comments. ... Array indices must be positive integers or logical values. Thukten Tashi on 13 Mar 2021.Array indices must be positive integers or logical values. plot (t,NB_t,t,NA_t); Show 1 older comment. Joseph Wunschel on 2 Oct 2021. That would make more sense. I appologize. I'm very new to coding, especially MATLAB and never posted something like this before so I didn't really think of that at the time.Accepted Answer. They're not meant to be empty. Going up we see, [V,I] = min ( [Va,Vd], [],2); It's the colum index where a minimum is found. I don't know what Va and Vd are. if they are column vectors then [Va, Vd] only has two columns, and obviously, you're never going to find a minimum in the 3rd column.Sep 27, 2018 · Index in position 1 is invalid. Array indices must be positive integers or logical values. Array indices must be positive integers or logical values. Follow 12 views (last 30 days) Show older comments. Zhou Ci on 5 Oct 2021. Vote. 0. Link. ... Array indices must be positive integers or logical values. Star Strider on 6 Oct 2021.Index in position 1 is invalid. Array indices... Learn more about indexing, matrix array"Array indices must be positive integers or... Learn more about indice, error, loop, euler MATLAB. ... Array indices must be positive integers or logical values. 0 Comments. Show -1 older comments Hide -1 older comments. Sign in to comment. Sign in to answer this question.

Why am I getting "Array indices must be positive integers or logical values." 0 Why does MATLAB say that my array index must either be a positive integer or a logical value?

Oct 28, 2020 · 3 The issue is that you try to assign to f (a) where a=0, so you mixed between a vector index and value, as well as use f for two different purposes, one as the output of the function NC, and one for the value of fun (x), that's not a good idea. Instead you can define the output in a separate variable: fa=fun (a); fb=fun (n); f= (b-a)* (fa+fb)/2; Index in position 1 is invalid. Array indices... Learn more about functions, arrays, matrix MATLABnum2str of an integer does not have a '.' in it. Eventually you remove all of the characters, at which point size is 0 and end then becomes 0 so a(end) becomes a(0)Some simple rules for subtracting integers have to do with the negative sign. When two negative integers are subtracted, the result could be either a positive or a negative integer.Yes, as YT says, clearly your value index is not a positive integer or logical. Since value comes from your hist input, then hist contains some non-integer values. Something you should check yourself.Oct 21, 2018 · speed (T) = -0.073.* (t.^2) + 6.1802.*t + 40.423; end. end. plot (0:0.1:25, speed) The first design pattern can be used even when the values are irregularly spaced or when it is difficult to calculate an index given a value. The control value associated with any one location is always the same because the control values are pre-calculated and ... 1 Answer Sorted by: 0 If you are writing f (z) into matlab it means z index of array f. You need to say r = (1-exp ( (1+v)./z)).* (z./y).*cos (z): v = 3.4; y = 6.9; …The section of code with n(p/0.01) also looks like it might be missing a multiplication operator. If it isn't and you intended p/0.01 to give you an integer value you can use as an index into n, you may encounter difficulties due to floating point arithmetic.Array indices must be positive integers or logical values. here i would be taking values from variable resource in table y, for which sum till end day of project (t) whose square is found. i hope this explains the above line from code. this the code, here the value taken is binary so cannot be non positive.

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ODE error Array indices must be positive... Learn more about ode45, array, errorHi all I have the above error, could you please help me to know the problem. THANK YOU. xl=0; xr=1; %domain[xl,xr] ...Oct 28, 2020 · 3 The issue is that you try to assign to f (a) where a=0, so you mixed between a vector index and value, as well as use f for two different purposes, one as the output of the function NC, and one for the value of fun (x), that's not a good idea. Instead you can define the output in a separate variable: fa=fun (a); fb=fun (n); f= (b-a)* (fa+fb)/2; Apr 19, 2021 · Array indices must be positive integers or logical values. % (This will output a coefficient in alternating sine,cos for each point) % % First use standard Matlab routine to find Fourier transform of y. % % z contains the complex coefficeints of the Fourier exponential series. % % This section takes the exponential series coefficients and gives ... "Array indices must be positive integers or logical values." Follow 1 view (last 30 days) Show older comments. Hiruni Adithya Rajapakshe on 26 Oct 2021. ... Array indices must be positive integers or logical values. 0 Comments. Show -1 older comments Hide -1 older comments.etivity 2.9 (0.7 pts) he following formulas are commonly used by engineers to predict the lift and drag of an airfoil: L = 0.5pc,sp? here L and D are the lift and drag forces, V is the airspeed, s is the wing span, ρ is the air ensity, and C, and CD are the lift and drag coefficients. Both C, and C, depend on α , the ngle of attack, the angle ... Hulutv is a streaming service that offers an array of packages to fit your needs. With Hulutv, you can get the best value for your money, no matter what your budget is. Here are some of the ways you can get the most out of your Hulutv subsc...Array indices must be positive integers or logical values. Follow 10 views (last 30 days) Show older comments. Margo Donlin on 7 Nov 2019. Vote. 0. Link. ... Array indices must be positive integers or logical values. >> UDFES01_HeelMarkers{n,1}(1.7290e+03,2) ans = 0.7861 >>Array indices must be positive integers or logical values. 0 Comments. Show -1 older comments Hide -1 older comments. Sign in to comment. Sign in to answer this question. Answers (1) Cris LaPierre on 13 Mar 2021. ... Array indices must be positive integers or logical values. ….

Array indices must be positive integers or logical values? I know what “Array indices must be positive integers or logical values.” means, but I dont really understand where is the problem, my integers … + View Here. in position 2 is invalid. Array indices must be positive integers … Dear all,.why do I get "Array indices must be... Learn more about error, coefficient of variation, relative standard deviation . ... why do I get "Array indices must be positive integers or logical values" Follow 1 view (last 30 days) Show older comments. Georgia Thorpe on 1 Jan 2023.Silver has long been considered a valuable and precious metal, with a rich history dating back centuries. Today, many investors and individuals track the silver value per ounce as an indicator of market trends and economic stability.and since ‘i’ goes from 1 to 100, the index into ‘t’ will be negative or 0 at the end of the loop, and negative or 0 subscripts are not permitted in MATLAB. One possible solution that also automatically scales for different lengths of ‘t’: Theme. Copy. set (s,'XData', cos (t (end-i+1)),'YData',sin (2*t (end-i+1))); Otherwise, since ...Array indices must be positive integers or logical values. Follow 178 views (last 30 days) Show older comments Harry Brown on 21 Oct 2018 0 Link Reopened: Walter Roberson on 20 Dec 2018 I am trying to ploy a graph of speed against time. But I keep getting this error. Theme Copy hold on for t = 0:0.1:25 if t < 5Array indices must be positive integers or... Learn more about t=0 MATLABYes, as YT says, clearly your value index is not a positive integer or logical. Since value comes from your hist input, then hist contains some non-integer values. Something you should check yourself.Nov 17, 2019 · Array indices must be positive integers or... Learn more about error, index starting at 0, needs to start with 1 Array indices must be positive integers or logical values, [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1]