Difficulty with align_move - Error in order(m_aligned$timestamp)

[mlivernois]

I'm trying to use align_move on the attached dataframe (acoustic telemetry detections):

rsp_example.csv

Here's the code, with the error I can't seem to resolve at the end:

library(moveVis)
library(move2)
library(sf)
rsp_example <- read.csv('rsp_example.csv')
rsp_example$Timestamp <- as.POSIXct(rsp_example$Timestamp, format="%Y-%m-%d %H:%M:%S", tz = "UTC")
move_example <- mt_as_move2(rsp_example,
coords = c("Longitude", "Latitude"),
time_column = "Timestamp",
track_id_column = "Track")
|> sf::st_set_crs(4326L)
align_example <- align_move(m = move_example, res = units::set_units(1, "hour"))
Temporal resolution of 1 [h] is used to align trajectories.
Error in order(m_aligned$timestamp) : argument 1 is not a vector

I can't figure out what's going wrong here. Any ideas? Sorry if this isn't the place to ask this question, since it's probably not a bug - just user error? Thanks in advance!

[robe2037]

I think this is likely a duplicate of #138. The problem is that align_move() assumes that the temporal information for the tracks will be stored in a column called "timestamp", but it looks like your data use the name "Timestamp". I've made PR #148 to address this, but in the meantime you should be able to avoid the issue if you manually change the name of your timestamp column to "timestamp" (i.e., with rsp_example$timestamp <- ... instead of rsp_example$Timestamp <- ...)