Field Assignment To A Non-Structure Array Object (Resolved)

This error message is typically encountered in programming languages such as MATLAB or Octave, and it occurs when attempting to assign a value to an element of an array that is not a structure array.

The most common cause of this error is attempting to assign a value to an element of a regular array (i.e., an array that is not a structure array) using the dot notation for structure field referencing (e.g., myArray.field = value). Instead, you should use the array indexing notation (e.g., myArray(index) = value) to assign a value to an element of a regular array.

Another possible cause of this error is trying to access a field of a variable that is not a structure array. In this case, you should check that the variable you are trying to access is indeed a structure array and that the field you are trying to access is defined within the structure.

To fix this error, you should check your code to ensure that you are using the correct notation for assigning values to elements of arrays and that you are not trying to access fields of non-structure arrays.

In summary,

• Make sure you are using the correct notation to access and assign values to array elements.
• Ensure that the variable you are trying to access is indeed a structure array, and check that the field you are trying to access is defined within the structure.
• If possible, try to print or check the variable or array type to make sure it is a structure array.
• Check the variable and field name you are trying to access, make sure there is no typo or wrong variable name.

Related Issues

MATLAB error - ??? Attempt to reference field of non-structure array

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Frequently Asked Questions About Field Assignment To A Non-Structure Array Object

What does the error "field assignment to a non-structure array object" mean?

This error message occurs when attempting to assign a value to an element of an array that is not a structure array, using the dot notation for structure field referencing.

What causes this error?

The most common cause of this error is attempting to assign a value to an element of a regular array (i.e., an array that is not a structure array) using the dot notation. Another cause is trying to access a field of a variable that is not a structure array.

How can I fix this error?

To fix this error, you should check your code to ensure that you are using the correct notation for assigning values to elements of arrays and that you are not trying to access fields of non-structure arrays. Make sure the variable you are trying to access is indeed a structure array and that the field you are trying to access is defined within the structure.

Can this error be caused by a typo or a wrong variable name?

Yes, this error can be caused by a typo or a wrong variable name. Make sure to check the variable and field name you are trying to access to ensure there are no typos.

Is it possible to check if a variable is a structure array or not?

Yes, you can check if a variable is a structure array or not by using the function 'isstruct' in matlab or similar function in other programming languages. You can also try to print or check the variable or array type to make sure it is a structure array.