Share Analysis

Step 4 of 4 in Using Signal Analyzer App

Copy Displays

You can share the plots that you have produced using theSignal Analyzerapp by copying one or more displays to the clipboard as images and pasting them into another application.

To copy displays to the clipboard, on theDisplaytab, clickCopy All Displays▼. You can then copy either the selected display or the complete display layout.

To copy a single display to the clipboard, you can also right-click the display and selectCopy Display.

Export Signals

You can export any signals in theSignal AnalyzerSignal table to the MATLAB^®workspace or to a MAT-file.

To export signals:

Select one or more signals from the Signal table.
On theAnalyzertab, clickExport.
Choose whether you want to export the selected signals to the MATLAB workspace or save them to a MAT-file. If you choose to save the signals, browse to where you want to save the file, name the file, and clickSave.

You can also select the signals, right-click, and selectExport.

Signals are exported differently, depending on their type:

Signals with no time information are exported or saved as numeric vectors.
Signals stored as timetables are exported or saved as timetables.
Signals that have time information but are not stored as timetables are exported or saved as numeric vectors. If you want to preserve the time information, you can save the signals as timetables. On theAnalyzertab, clickPreferencesand checkAlways use timetables when signals have time information.
The export behavior for multichannel signals depends on the signals and channels that you select and on the preferences you have set.
- Whenever possible, the app exports signals of the same name and type (numeric or timetable) as the originals.
- If you select a signal with several channels, the app exports it as a single matrix or timetable if the individual channels have the same length and time information.
- If you select a signal with several channels that have different lengths or different time information, the app exports them as independent signals.
- If you select a signal and one or more of its channels at the same time, the app exports a copy of the whole signal and independent variables corresponding to the selected channels.
Example:Create three two-channel signals. Each channel ofsgnhas 100 samples. Each channel ofsgthas 200 samples. The timetabletmbhas two 20-sample channels sampled at 1 Hz.
```
sgn = randn(100,2); sgt = randn(200,2); tmb = timetable(seconds(0:19)',randn(20,2));
```
Drag the signals to the Signal table. Expand the tree view to see the individual channels. Selectsgtand, on theAnalyzertab, clickTime Values. SelectSample Rate and Start Timeand specify a sample rate of 25 Hz. Selectsgn, the first channel ofsgt, and the second channel of the only variable oftmb.

On theAnalyzertab, clickExportto export the selected signals to a MAT-file. Use the default file name. Load the file into the MATLAB workspace.
```
loadNew_Exportwhos
```
```
Name Size Bytes Class sgn 100x2 1600 double sgt_1 200x1 1600 double tmb_Var1_2 20x1 1368 timetable
```
The app exportedsgt_1as a vector, even though it has time information. On theAnalyzertab, clickPreferencesand checkAlways use timetables when signals have time information. Export the signals again.sgt_1becomes a timetable.
Example:Create a timetable with four variables."Temperature"has two channels,"WindSpeed"has one channel,"Electric"has three channels, and"Magnetic"has one channel.
```
tmt = timetable(seconds(0:99)',...randn(100,2),randn(100,1),randn(100,3),randn(100,1)); tmt.Properties.VariableNames =...["Temperature""WindSpeed""Electric""Magnetic"];
```
Drag the timetable to the Signal table. Expand the tree view to see the individual channels. Selecttmt,tmt.Temperature, the second channel oftmt.Electric, andtmt.Magnetic.

On theAnalyzertab, clickExportto export the selected signals to a MAT-file. Use the default file name. Load the file into the MATLAB workspace.
```
loadNew_Exportwhos
```
```
Name Size Bytes Class tmt 100x4 8180 timetable tmt_Electric_2 100x1 2656 timetable tmt_Magnetic 100x1 2652 timetable tmt_Temperature 100x1 3458 timetable
```
The app exportedtmtas a four-variable timetable,tmt_Temperatureas a timetable with a two-channel variable, and the two single-variable, single-channel timetablestmt_Electric_2andtmt_Magnetic.

GenerateMATLABScripts and Functions

You can generate MATLAB scripts to extract signal regions of interest or automate the computation of power spectrum, persistence spectrum, spectrogram, or scalogram estimates obtained with theSignal Analyzer应用程序。

To generate a MATLAB script, on theDisplaytab, clickGenerate Script. The generated script opens in the Editor.

SelectROI Script Between Time Limitsto generate a MATLAB script that extracts a region of interest defined by the time limits of the selected display. Depending on the preferences, the regions of interest are saved as numeric vectors or as a timetable.
SelectROI Script Between Time Cursorsto generate a MATLAB script that extracts a region of interest defined by the locations of the time-domain cursors in the selected display. Depending on the preferences, the regions of interest are saved as numeric vectors or as a timetable.
SelectSpectrum Scriptto generate a MATLAB script that computes the power spectrum appearing in the spectrum view of the selected display, including all current settings.
SelectPersistence Spectrum Scriptto generate a MATLAB script that computes the persistence spectrum appearing in the spectrum view of the selected display, including all current settings.
SelectSpectrogram Scriptto generate a MATLAB script that computes the spectrogram appearing in the spectrogram view of the selected display, including all current settings.
SelectScalogram Script生成一个MATLAB脚本计算宏大ogram appearing in the scalogram view of the selected display, including all current settings. You need a Wavelet Toolbox™ license to use the scalogram view.

You can generate MATLAB functions to automate signal preprocessing steps performed with theSignal Analyzer应用程序。

To generate a MATLAB preprocessing function, on theAnalyzertab, clickGenerate Function. The generated function opens in the Editor.

Save and Load Signal Analyzer Sessions

If you want to share session snapshots or archive them to view later, save theSignal Analyzersession to a MAT-file or MLDATX-file. Using MLDATX-files results in faster save and load times.

To save a session to a MAT-file or MLDATX-file:

On theAnalyzertab, clickSave▼ and selectSave.
Browse to where you want to save the file, name the file, choose the format, and clickSave.

If you want to update the file, clickSave. If you want to save the session to a different file, clickSave▼ and selectSave as.

To load a saved session:

On theAnalyzertab, clickOpen.
Browse to the MAT-file or MLDATX-file saved from a previous session, select it, and clickOpen. The signal data and properties appear as they were when the file was last saved.

To start a new session, on theAnalyzertab, clickNew.