setdiff - Returns difference between two vectors of Simulink.WorkspaceVar objects

Syntax

Description

VarsOut = setdiff (VarsIn1, VarsIn2) inputs two vectors of Simulink.WorkspaceVar objects and returns a vector containing a Simulink.WorkspaceVar object for each workspace variable that is represented in the first vector but not the second. The function compares input objects by comparing their Name, Workspace, and WorkspaceType values. If all three value are the same in both objects, the two objects match. Any returnes object is a new object having the same field values as the source input object.

VarsOut = VarsIn1.setdiff (VarsIn2) is the equivalent method syntax (Simulink.WorkspaceVar.setdiff) and gives identical results

Input Arguments

Output Arguments

Examples

Given two models, discover which variables are needed by the first model but not the second model:

model1Vars = Simulink.findVars('model1');
model2Vars = Simulink.findVars('model2');
commonVars = setdiff(model1Vars, model2Vars);

Locate all variables in the base workspace that are not being used by any recently-compiled open model:

models = find_system('type', 'block_diagram', 'LibraryType', 'None');
base_vars = Simulink.WorkspaceVar(who);
used_vars = Simulink.findVars(models, 'WorkspaceType', 'base');
unusedVars = setdiff(base_vars, used_vars);

See Also

intersect | setdiff | Simulink.findVars

How To

• Simulink.WorkspaceVar

Related Products & Applications

• Simulink
• Control Design
• Signal Processing & Communications
• Model-Based Design
• Physical Modeling
• Verification & Validation

Get Simulink trial software

Learn more about Simulink through this collection of videos, articles, technical literature and the Getting Started with Simulink Guide.

Get this Simulink Kit