array indices must be positive integers or logical values in matlab

main.m
% Creating an array
myArray = [1, 2, 3, 4, 5];

% Accessing elements using positive integers
element1 = myArray(1); % Accessing the first element with index 1
element3 = myArray(3); % Accessing the third element with index 3

% Accessing elements using logical values
logicalIndices = [false, true, false, true, false]; % Logical values to index elements
selectedElements = myArray(logicalIndices); % Accessing elements with the corresponding logical indices
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main.m
myArray = [1, 2, 3, 4, 5];

% Trying to access the element with a negative index
negativeIndex = -1;
elementError = myArray(negativeIndex); % This will result in an error

% Trying to access the element with a non-integer index
nonIntegerIndex = 2.5;
elementError = myArray(nonIntegerIndex); % This will also result in an error
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