Wiki source code of Widget TimeSeries
Version 33.1 by rominabaila on 2023/05/15 11:06
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22.1 | 1 | Source code: [[https:~~/~~/github.com/the-virtual-brain/tvb-widgets>>url:https://github.com/the-virtual-brain/tvb-widgets]] |
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21.1 | 2 | |
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25.1 | 3 | This is part of a Pypi release: [[https:~~/~~/pypi.org/project/tvb-widgets/>>url:https://pypi.org/project/tvb-widgets/]] |
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21.1 | 4 | |
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25.1 | 5 | //**tvb-widgets**// is also already installed in the official image released for EBRAINS lab, where you can test it directly. |
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23.1 | 7 | == Purpose == |
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1.1 | 8 | |
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22.1 | 9 | It is a Jupyter Widget intended for the visualization of brain signals represented as time series. |
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5.1 | 10 | |
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32.1 | 11 | == Backends == |
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| 13 | Starting with //**tvb-widgets 1.5.0**, //the TS widget comes in 2 forms, corresponding to the 2 different libraries (we called them backends) used for plotting: **matplotlib **and **plotly**. The matplotlib backend, build on top of the **mne** library, offers more advanced scientifical features, while the plotly backend has a more appealing look and moves faster when talking about the basic interactions. | ||
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| 15 | Below you can see the TS widget with each backend option (first one using the matplotlib backend, the second one using the plotly backend). | ||
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| 17 | (% style="text-align:center" %) | ||
| 18 | [[image:matplotlib.png]] | ||
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| 20 | (% style="text-align:center" %) | ||
| 21 | [[image:plotly.png]] | ||
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5.1 | 23 | == Inputs == |
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17.1 | 25 | Time series can be given as inputs in two forms: |
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6.1 | 26 | |
| 27 | * TVB TimeSeries datatype | ||
| 28 | * Numpy arrays | ||
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17.1 | 30 | This widget supports 2D, 3D, and 4D arrays. In all three cases, there is a fixed shape that the TimeSeries widget expects: |
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6.1 | 31 | |
| 32 | * for **2D**: (no_timepoints, no_channels) | ||
| 33 | * for **3D**: (no_timepoints, state_variable/mode, no_channels) | ||
| 34 | * for **4D**: (no_timepoints, state_variable, no_channels, mode) | ||
| 35 | |||
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17.1 | 36 | ~* Note that the TVB TimeSeries datatype is always 4D and already has the expected shape. |
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7.1 | 37 | |
| 38 | == Requirements and installation == | ||
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33.1 | 40 | |
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17.1 | 41 | Before installing the tvb-widgets library containing the TimeSeries widget, the following python libraries and Jupyter extensions should be installed: |
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7.1 | 42 | |
| 43 | * **Libraries:** | ||
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33.1 | 44 | ** [[mne>>https://mne.tools/stable/index.html]] >= 1.0 |
| 45 | ** [[matplotlib>>https://matplotlib.org/3.5.0/index.html]] | ||
| 46 | ** [[plotly>>https://plotly.com/python/]] == 5.14.0 | ||
| 47 | ** [[ipywidgets>>https://ipywidgets.readthedocs.io/en/7.x/]] == 7.7.2 | ||
| 48 | ** [[ipympl>>https://github.com/matplotlib/ipympl#installation]] >= 0.8.5 | ||
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7.1 | 49 | * ((( |
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11.1 | 50 | **Extensions:** |
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7.1 | 51 | |
| 52 | (% class="box" %) | ||
| 53 | ((( | ||
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8.1 | 54 | jupyter labextension install @jupyter-widgets/jupyterlab-manager |
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7.1 | 55 | |
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8.1 | 56 | jupyter labextension install jupyter-matplotlib |
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33.1 | 57 | |
| 58 | jupyter labextension install jupyterlab-plotly | ||
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7.1 | 59 | ))) |
| 60 | ))) | ||
| 61 | |||
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12.1 | 62 | Then, to install the tvb-widgets library, just type: |
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7.1 | 63 | |
| 64 | (% class="box" %) | ||
| 65 | ((( | ||
| 66 | pip install tvb-widgets | ||
| 67 | ))) | ||
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13.1 | 68 | |
| 69 | == API usage == | ||
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| 71 | First, the correct matplotlib backend must be set, which enables the interaction with the TimeSeries widget, by running the following command: | ||
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| 73 | (% class="box" %) | ||
| 74 | ((( | ||
| 75 | %matplotlib widget | ||
| 76 | ))) | ||
| 77 | |||
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17.1 | 78 | Then, the **TimeSeriesWidget** (from the tvb-widgets API) and the **//display//** function should be imported: |
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13.1 | 79 | |
| 80 | (% class="box" %) | ||
| 81 | ((( | ||
| 82 | from tvbwidgets.api import TimeSeriesWidget | ||
| 83 | from IPython.core.display_functions import display | ||
| 84 | ))) | ||
| 85 | |||
| 86 | Assuming that the user has already created or imported a valid input, this is how the widget can be initialized and how an input can be assigned to it, using the //**add_datatype** //method (example below assumes that **//tsr// **is a TVB TimeSeries datatype): | ||
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| 88 | (% class="box" %) | ||
| 89 | ((( | ||
| 90 | tsw = TimeSeriesWidget() | ||
| 91 | tsw.add_datatype(tsr) | ||
| 92 | ))) | ||
| 93 | |||
| 94 | Finally, to display and interact with the TimeSeries widget, the **//get_widget//**// //method is used inside the //**display **//function: | ||
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| 96 | (% class="box" %) | ||
| 97 | ((( | ||
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19.1 | 98 | display(tsw) |
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13.1 | 99 | ))) |
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15.1 | 100 | |
| 101 | {{html}} | ||
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27.1 | 102 | <iframe width="840" height="480" src="https://www.youtube.com/embed/VmueiXMxbVk" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe> |
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15.1 | 103 | {{/html}} |