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Both sides previous revision Previous revision Next revision | Previous revision | ||
usage:tracking [2020/05/27 13:34] – [Training link inclusion proportion choice] pseudomoaner | usage:tracking [2021/03/06 15:44] (current) – pseudomoaner | ||
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Firstly, it can be used to verify that each feature is properly normalised. If they have been properly normalised, the displayed scatterplot should be isotropic (radially symmetric) and centred on the origin. Below are examples of well-normalised (left) and poorly normalised (right) features: | Firstly, it can be used to verify that each feature is properly normalised. If they have been properly normalised, the displayed scatterplot should be isotropic (radially symmetric) and centred on the origin. Below are examples of well-normalised (left) and poorly normalised (right) features: | ||
- | <WRAP group> | ||
<WRAP half column centeralign> | <WRAP half column centeralign> | ||
{{ : | {{ : | ||
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<WRAP half column centeralign> | <WRAP half column centeralign> | ||
{{ : | {{ : | ||
- | </ | ||
</ | </ | ||
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* **x** and **y:** The instantaneous coordinates of the object over time. Each is a $t \times 1$ vector. | * **x** and **y:** The instantaneous coordinates of the object over time. Each is a $t \times 1$ vector. | ||
- | * **smoothx** and **smoothy: | ||
* **theta** and **vmag:** The instantaneous direction of motion (in degrees) and speed of the object. Each is a $(t-1) \times 1$ vector. | * **theta** and **vmag:** The instantaneous direction of motion (in degrees) and speed of the object. Each is a $(t-1) \times 1$ vector. | ||
- | * **smoothTheta** and **smoothVmag: | ||
* **times:** The timepoints the object' | * **times:** The timepoints the object' | ||
* **length:** Total length (in timepoints) of the track. | * **length:** Total length (in timepoints) of the track. | ||
* **start** and **end:** Start and end timepoints of the track. | * **start** and **end:** Start and end timepoints of the track. | ||
* **age:** The age of the object relative to the start of the track at each timepoint. Equivalent to **times** - **start**. | * **age:** The age of the object relative to the start of the track at each timepoint. Equivalent to **times** - **start**. | ||
+ | * **interpolated: | ||
Depending on the options selected in the [[usage: | Depending on the options selected in the [[usage: | ||
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===== Video demonstration ===== | ===== Video demonstration ===== | ||
- | {{ youtube>rSnvglvt-rE?large }} | + | ====Part 1==== |
+ | {{ youtube>EW4hl439Xp4? | ||
+ | |||
+ | ====Part 2==== | ||
+ | {{ youtube> | ||