Index in position 1 is invalid. Array indices must be positive integers or logical values.

3 次查看（过去 30 天）
Anders Larsen
Anders Larsen 2021-11-9
评论： Anders Larsen 2021-11-10
Hi,
I am trying to run a function inside a for loop with an index that should start at 1 however, MATLAB gives me an indexing error eventhough I have started the for loop from i = 1:c. I am running simulations in HYSYS through MATLAB.
global simname
simname = "C:\Users\Desktop\MEA1_25102021.tpl";
% Generating the design matrix with inputs
T = [45, 50]';
P = [1, 2]';
x = fullfact([2 2]);
x = [T(x(:, 1)), P(x(:,2))];
% Preallocating
c = length(x);
CO2removal = zeros(1, c);
reboil_duty = zeros(1, c);
% Calling the function
for i = 1:c
[CO2removal, reboil_duty]=simulation(x);
end
function [CO2removal, reboil_duty]=simulation(x)
hysys=actxserver('HYSYS.Application.V9.0');
hysys.ChangePreferencesToMinimizePopupWindows(1);
global simname
SimCase=hysys.SimulationCases.Open(simname);
SimCase.visible=true;
Solver=SimCase.solver;
Solver.Cansolve=false;
sprdsht=hysys.activeDocument.Flowsheet.Operations.Item('I/O');
%Setting input values (independent vars)
hyset(sprdsht.Cell('B10'),x(i, 1))
hyset(sprdsht.Cell('D10'),x(i, 2))
Solver.Cansolve=true;
while Solver.issolving
pause(on)
end
% Reading output/dependent/calculated values
sprdsht=hysys.activeDocument.Flowsheet.Operations.Item('I/O');
CO2removal(i) = sprdsht.Cell('D12').CellValue;
reboil_duty(i) = sprdsht.Cell('B12').CellValue;
end
Please let me know if you need more context.
Thanks.

请先登录，再回答此问题。

采纳的回答

David Hill
David Hill 2021-11-9
for i = 1:c
[CO2removal, reboil_duty]=simulation(x,i);%need to pass i to the function as well
end
function [CO2removal, reboil_duty]=simulation(x,i)

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Matrix Indexing 的更多信息

标签

产品


版本

R2021a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by