How to get information on a Simulink.Signal data store?

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If I create a data store in the base workspace like so:
DataStore = Simulink.Signal;
DataStore.Description = 'Stores data for a variable.';
DataStore.DataType = 'double';
DataStore.Complexity = 'real';
DataStore.Dimensions = 1;
DataStore.SamplingMode='Sample based';
DataStore.SampleTime = 0.1;
how can I later get this data via the Command Window, specifically the DataType? I can access it by double-clicking the workspace variable (shown below), but I need to get this data programmatically for a script.

Accepted Answer

Monika Jaskolka
Monika Jaskolka on 12 Dec 2018
Edited: Monika Jaskolka on 12 Dec 2018
A function will have its own workspace, so you will have to get the Simulink.Signal object from the base workspace first:
% Get all Simulink.Signal objects
workspaceData = evalin('base', 'whos');
idx = ismember({workspaceData.class}, 'Simulink.Signal');
allDs = workspaceData(idx);
% Find the object that is named 'DataStore'
match = strcmp({allDs.name}, 'DataStore');
ds = allDs(match);
% Get the Signal object
ds = evalin('base', ds.name);
% Get the type
type = ds.DataType;
type = get(ds, 'DataType'); % Alternative command

More Answers (1)

Fangjun Jiang
Fangjun Jiang on 12 Dec 2018
Just like you did in the script, as long as you know the Simulink.Signal object name.
To get the data type: DataStore.DataType or get(DataStore,'DataType')
To set the data type: DataStore.DataType='single' or set(DataStore,'DataType','single')

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