Extracting Matrix Elements using Defined Variable in Workspace

Hello,

I'm trying to figure out if there is a way to identify a matrix element by passing through a variable string name inside the matrix call out as shown below:

System_Type= 2 <--- Variable Defined in Workspace

OutputMatrix = [8x8] <--- Matrix Defined in Workspace

OutputMatrix(1,1) <--- Normally Defining the value of the element in matrix

OutputMatrix('System_Type', 1) <--- How I would like to pass through variable "System_Type" and be able to extract the element of the matrix based on the string input value.

I'd appreciate it if anyone can provide guidance on this! Thanks Nima

Answer 1

[Walter Roberson]

No, or at least not with that syntax. You can use OutputMatrix(System_Type, 1)

If it is important that you pass the column name to another routine, then one way would be to pass it as an additional argument that you just use for whatever output purpose you need. Another way would be to construct a structure such as

colnames.ID_number = 1;
colnames.System_Type = 2;
colnames.Revision_Date = 3;

and then when you need to convert the field name to a value,

FieldName = 'System_Type';
[...]
OutputMatrix( colnames.(FieldName), 1)

[Nima Forghani]

Thanks you Walter for your response!

This workaround helps.

thanks again!

Nima