crop.RdThis function plots the input data # and allows the user to select start and end times for cropping.
crop(X, sampling_rate = NULL, T = NULL)
| X | A sensor list, vector or matrix. X can be regularly or irregularly sampled data in any frame and unit. |
|---|---|
| sampling_rate | The sampling rate of X in Hz. This is only needed if X is not a sensor list. If X is regularly sampled, sampling_rate is one number. |
| T | A vector of sampling times for X. This is only needed if X is not a sensor list and X is not regularly sampled. |
A list with 3 elements:
Y: A sensor list, vector or matrix containing the cropped data segment. If the input is a sensor list, the output will also be. The output has the same units, frame and sampling characteristics as the input.
T: A vector of sampling times for Y. This is only returned if X is irregularly sampled and X is not a sensor list. If X is a sensor list, the sampling times are stored in the list.
tcues: tcues is a two-element vector containing the start and end time cue in seconds of the data segment kept, i.e., tcues = c(start_time, end_time).
Possible input combinations include: crop(X) if X is a sensor list, crop(X, sampling_rate) if X is a vector or matrix.
data <- beaked_whale Pc <- crop(data$P) # interactively select a section of data Ydata <- Pc$data plot(-Ydata) # plot shows the cropped section, inverted so it looks like a dive profile