Access Logged Signals with Spaces and Newlines in Logged Names

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This example shows how to log signals with logged names that contain spaces or newlines. Open the model SpacesNewlines. The model logs three signals that illustrate:

A signal with a name that contains a space
A signal with a name that contains a newline
An unnamed signal that originates on a block with a name that contains a newline

mdl = "SpacesNewlines";
open_system(mdl)

The SpacesNewlines model

Simulate the model.

out = sim(mdl)

out = 
  Simulink.SimulationOutput:
                logsout: [1x1 Simulink.SimulationData.Dataset] 
                   tout: [51x1 double] 
                   yout: [1x1 Simulink.SimulationData.Dataset] 

     SimulationMetadata: [1x1 Simulink.SimulationMetadata] 
           ErrorMessage: [0x0 char]

All logged data is returned as a single Simulink.SimulationData object in a variable named out. Contained in the SimulationData object, signal logging data is grouped in a Simulink.SimulationData.Dataset object with the default name logsout. Use dot notation to access the signal logging data. In the Dataset object, names are displayed with a space where the signal name contains a space or a newline. The unnamed signal has an empty character array as its name.

sigData = out.logsout

sigData = 
Simulink.SimulationData.Dataset 'logsout' with 3 elements

                         Name  BlockPath                  
                         ____  __________________________ 
    1  [1x1 Signal]      ''    SpacesNewlines/Sine  Wave2
    2  [1x1 Signal]      x y   SpacesNewlines/Sine Wave  
    3  [1x1 Signal]      a b   SpacesNewlines/Sine Wave1 

  - Use braces { } to access, modify, or add elements using index.

You can access a signal with a name that contains a space by name or by index. For example, use the get function to access the signal named x y.

get(sigData,"x y")

ans = 
  Simulink.SimulationData.Signal
  Package: Simulink.SimulationData

  Properties:
              Name: 'x y'
    PropagatedName: ''
         BlockPath: [1x1 Simulink.SimulationData.BlockPath]
          PortType: 'outport'
         PortIndex: 1
            Values: [1x1 timeseries]

You can also access a signal with a name that contains a newline by name or by index. To access the signal by name, use newline to concatenate a newline character between two strings.

sigName = ["a" + newline + "b"];
get(sigData,sigName)

ans = 
  Simulink.SimulationData.Signal
  Package: Simulink.SimulationData

  Properties:
              Name: 'a...'
    PropagatedName: ''
         BlockPath: [1x1 Simulink.SimulationData.BlockPath]
          PortType: 'outport'
         PortIndex: 1
            Values: [1x1 timeseries]

When a signal is unnamed, use indexing to access the signal.

sigData{3}

ans = 
  Simulink.SimulationData.Signal
  Package: Simulink.SimulationData

  Properties:
              Name: 'a...'
    PropagatedName: ''
         BlockPath: [1x1 Simulink.SimulationData.BlockPath]
          PortType: 'outport'
         PortIndex: 1
            Values: [1x1 timeseries]

Access Logged Signals with Spaces and Newlines in Logged Names

See Also

Functions

Objects

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