Extract tapping (screen sensor) features
tapping_features(tap_data, depress_threshold = 20)
| tap_data | A n x 4 data frame with column names as t, x, y, buttonid containing tapping measurements. Here n is the total number of tapping measurements, t is the time of measurement when the screen press was recorded, x and y are the coordinates of the screen touch in the smartphone, and buttonid can be one of the following values c('TappedButtonLeft', 'TappedButtonRight','TappedButtonNone') indicating a tap that has been classified as to the left, right or neither of those places on the screen |
|---|---|
| depress_threshold | A numeric value indicating the threshold between two successive taps |
A 1 x 43 data frame consisting of tapping features and an error message, if any See https://github.com/Sage-Bionetworks/mhealthtools/blob/master/FeatureDefinitions.md for feature definitions