Download data: Events structure

The events structure is a list of timed events during a task. It contains events such as a participant interacting with a stimulus, or resizing the screen.

Compatible file types

Events structure data is currently only available in the .log file type. Read more about the log file and how to import it.

Structure

Each event is represented by one row. There are three columns:

  • time The time of the event in milliseconds elapsed since January 1, 1970 00:00 UTC
  • name The name of the event. See below for examples.
  • variables a key/value map with variables, such as the stimulus affected by the user action.

Example

Below is the content of an example log file containing events.

        1522184853949	logStarted	{}
        1522184853950	screenSize	{'h': 1080, 'w': 1920}
        1522184853953	viewportSize	{'h': 858.2666625976562, 'w': 1222}
        1522184853958	placed	{'id': 'eVgbZ', 'x': 0, 'y': -0.5, 'cat': 'first'}
        1522184853958	placed	{'id': '0YpAC', 'x': -0.05962680651716577, 'y': 0.014922748834862198, 'cat': 'first'}
        1522184853958	placed	{'id': 'XLZHk', 'x': 0, 'y': -0.5, 'cat': 'second'}
        1522184854018	queueSampled	{'from': 0}
        1522184863281	saveprogress	{}
        1522184952541	logStarted	{}
        1522184952542	screenSize	{'h': 1080, 'w': 1920}
        1522184952547	viewportSize	{'h': 858.2666625976562, 'w': 1222}
        1522184952555	placed	{'id': 'eVgbZ', 'x': 0, 'y': -0.5, 'cat': 'first'}
        1522184952555	placed	{'id': '0YpAC', 'x': -0.05962680651716577, 'y': 0.014922748834862198, 'cat': 'first'}
        1522184952555	placed	{'id': 'XLZHk', 'x': 0, 'y': -0.5, 'cat': 'second'}
        1522184952631	queueSampled	{'from': 0}
        1522184967688	saveprogress	{}
        1522185089525	placed	{'id': 'Q5OS4', 'x': 0.288995726610676, 'y': 0.14435351882160383, 'cat': 'first'}
        1522185089547	queueSampled	{'from': 0}
        1522185091444	placed	{'id': 'UTrzw', 'x': -0.236287732351751, 'y': 0.14435351882160383, 'cat': 'second'}
        1522185091466	queueSampled	{'from': 0}
        1522185093738	placed	{'id': '2i4kd', 'x': -0.009643516842161082, 'y': -0.29520692073883575, 'cat': 'first'}
        1522185093753	queueSampled	{'from': 0}