fix_repeating_values: Remove repeating instances of the same sample
View source: R/fix_waveforms.R
| fix_repeating_values | R Documentation |
Remove repeating instances of the same sample
Description
A device may only return a value every 20 seconds. If data is represented with 2 sec intervals, 9/10 are just repeats. This function takes a dataframe with repeating values, and tries to only return 1 observation per measured value.
Usage
fix_repeating_values(df, expected_interval = 20, max_difftime = 25)
Arguments
df |
Signal to fix (data frame) |
expected_interval |
The interval expected from the device. |
max_difftime |
If the interval between two changes is higher than max_timediff, this is interpreted as representing multiple true measurements. |
Details
eg. Vital recorder saves EV1000 samples every other second. Data is only calculated every 20 seconds. This function tries to match these 20 second samples.
Value
Dataframe with only relevant values (1 every 20 seconds)
