Array indices must be positive integers or logical values.
Where you wrote y(y-1), MATLAB thinks you are calling a function, with argument y-1.Instead, you need y.*(y-1).; All of those multiplications should be element-wise rather than matrix multiplications. If you don't know what that means, read this documentation.; You need X and Y here, not x and y.
Why do I get "Array indices must be positive integers or logical values." error? Theme Copy %Euler Method %parameters g=9.81; rho=1.2; s=0.00011; m=0.023; Cd=0.9; %Initial Condition V0=0; V=0; %I choose dt as dt=2; %time interval t0=0; ts=10; t=0; i=0; while dt<ts; d1=g-0.5.*rho.*V0.^2* (s/m).*Cd; phiAvg=d1; V (i)=V0+dt.*phiAvg; V0=V; t (i)=t;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 8 views (last 30 days) Show older comments. Raushan 25 minutes ago. Vote. 0. ... Array indices must be …I wanted to make a function y, that has different values at y(0) and same for diff(y(0)), I thought that if I define the function first and then tell it that at some point it is equal as the value of the array(i), it would take that value as the t=0. With this I wanted to solve one differential equation, with 3 different starting conditions.Feb 3, 2021 · "Index in position 2 is invalid. Array indices must be positive integers or logical values.
Hi, ive been trying to plot 3 sets of data on the same graph plot and i keep getting this error message :Array indices must be positive integers or logical values in ...
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 ...To index r inside the for loop you need integer, M is a float Number. you can just define an additional index i. Also you don't need to …
In today’s volatile market, investors are constantly seeking safe-haven assets to protect their wealth. One such asset that has stood the test of time is gold. Known for its intrinsic value and stability, gold has been a sought-after invest...Index in position 1 is invalid. Array indices must be positive integers or logical values.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 neural network, performance, overfitting . ... Array indices must be positive integers or logical values, Neural Network Performances. Follow 5 views (last 30 days) Show older comments. Jingyuan Yao on 30 Jul 2021.Nov 20, 2022 · 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.
Array indices must be positive integers or logical values. Follow 8 views (last 30 days) Show older comments. Raushan 25 minutes ago. Vote. 0. ... Array indices must be positive integers or logical values. 0 Comments. Show -1 older comments Hide -1 older comments. Sign in to comment.
Nov 20, 2022 · 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.
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; z=8:1.21:328.65; f = (1-exp ( (1+v)./z)).* (z./y).*cos (z); Share Improve this answer Follow edited Apr 14, 2022 at 11:16 answered Apr 14, 2022 at 10:56 mcy 1,209 6 25 37 Add a commentArray indices must be positive integers or... Learn more about arrayOct 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. In MATLAB, your indices must be logical, or integer values >0. bigger picture, I'm not sure what you are trying to do with your for loop. Did you mean to be calling a function instead of indexing an array?It's not that Matlab doesn't know what i is, assuming it's not defined by the user. It's that i takes on the value of the imaginary unit when not otherwise defined.You're using the values in the first column of pts as indices into s. So m0 contains one or more values you can't use as indices. Once you fix that you will notice this line is trying to store 12 values to a single position.
Apr 23, 2018 · Answers (1) interest (1+interest) attempts to index the vector or array interest at location (s) 1+interest . 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. It is, however, rather suspect. Apr 22, 2020 · 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? Apr 22, 2020 · 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? It's not that Matlab doesn't know what i is, assuming it's not defined by the user. It's that i takes on the value of the imaginary unit when not otherwise defined."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?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 ...
Hi, I have a simple tab-delimited file text which looks like : Month H_Gh H_Dh H_Bn Ta Jan 33 17 55 0.5 Feb 52 29 60 1.4 Mar 97 51 97 5.6 Apr ...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. I am trying to ploy a graph of speed against time. But I keep getting this error. speed (t) = 0.1553567.* …I keep getting "Array indices must be... Learn more about array, for end loop . clear;clc x = .993 : 0.01 : 1.283; for n = 1 :1: length(x) f(x) = 7*x(n)^3 - 2*x(n)^2 ... I keep getting "Array indices must be positive integers or logical values." Follow 1 …The index in position two is the ind variable, so look inside that variable and see what the values are. They're going to be integer due to the way you construct ind, but if left is 0 or negative, then some ind values will indeed be invalid.Array indices must be positive integers or... Learn more about variable, equation MATLAB I'm trying to solve for the variable T, but MATLAB is returning Array indices must be positive integers or logical values.I use shocks; var A; periods 1:200; values 1; end; followed by endval; A=1; end; perfect_foresight_setup(periods=200); perfect_foresight_solver; I keep getting the warning: “”" Index in position 2 is invalid. Array indices must be positive integers or logical values ... Array indices must be positive integers ...Index in position 1 is invalid. Array indices must be positive integers or logical values.
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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.
Hey guys, does anyone know whats wrong. I already have my line code working. But once I run it on appdesigner. It display "Array indices must be positive integers or logical values". Can you g...Index in position 1 is invalid. Array indices must be positive integers or logical values.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.Index in position 1 is invalid. Array indices... Learn more about indexing, matrix arrayYou are not storing the value of Y that you compute. The end result of the for loop is that Y would be the last value that was stored into Y. If you had fixed the i-1 problem, then that would correspond to the i=10 case for the for loop. 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 …num2str 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)Array indices must be positive integers or... Learn more about matrix . ... Array indices must be positive integers or logical values. why? 0 Comments. Show -1 older comments Hide -1 older comments. Sign in to comment. Sign in to answer this question. Accepted Answer ."Array indices must be positive integers or logical values." Theme Copy A = [1,2,1,3; 3,1,2,0; 2,2,1,4; 1,3,2,1]; [V,D] = eig (A); exp_A = 0; for k = 0:100 exp_A = exp_A + (A^k)/factorial (k); end disp (exp_A);How to solve the "Array indices must be positive integers or logical values" when using optimization toolbox? Hot Network Questions Would a Variac improve the safety of experiments with old tech?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 ... Answers (1) You initialize nodes to all zero and never change that. You use nodes (i,j) as a subscript to Xcoord, so you are indexing Xcoord at offset 0, which is not permitted in MATLAB. elementX = 10; %input ('Enter no of elements in X direction:'); elementY = 4; %input ('Enter no of elements in Y direction:'); Array indices must be …
Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question.Provide details and share your research! But avoid …. Asking for help, clarification, or responding to other answers.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,.1 1 1 You use M as index of r, so it should be a positive integer and not a decimal number or zero. - Adiel May 30, 2019 at 12:19 Add a comment 1 Answer Sorted by: 0 First define r outside of the for loop r =zeros (size (0:0.1:1.4)); To index r inside the for loop you need integer, M is a float Number. you can just define an additional index iInstagram:https://instagram. conan strongest pettroy bilt weed eater 2 cycle won't startpointclickcare cna secure loginkentucky 10 day weather forecast Learn more about index in position 1 is invalid. array indices must be positive integers or logical values. MATLAB ... Array indices must be positive integers or ...Array indices must be positive integers or logical values. ... Array indices must be positive integers or logical values. Follow 31 views (last 30 days) charles beatyazn chikz Plenty of investors are familiar with the term "value investing," but many may not how to properly apply value investing techniques. The primary tenet of value investing is discovering companies that trade at prices below what a combination... sunshine games magic the gathering pokemon yu gi oh Effective commercials don’t just try to promote a great product; they also tell a story. People buy based on their emotions more than their logic — at least to a certain degree — and that makes advertisements that promote and capitalize on ...r/AskEngineers. Join. • 2 days ago. Years ago my high school chemistry teacher gave me zero points for using the ideal gas law to solve a problem involving burning of gasoline in an engine, stating that gasoline is a liquid not a gas. I thought gasoline is …