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actibase (development version)

• New acti_standardize_epoch() (and acti_standardise_epoch()) converts an epoch given as a number, a string ("1 min", "30s", "1 hr"), a Duration/Period, or a difftime into a number of seconds/minutes/ hours/days or a floor_date()/seq()-ready string.
• actibase now requires lubridate (>= 1.9.0), the first version whose floor_date() supports the absolute units ("90 aseconds") that acti_standardize_epoch() can return.
• The internal tzoffset_to_tz() now uses the correct inverted Etc/GMT sign convention ("-05:00" is "Etc/GMT+5"), matching actiread.
• acti_flag_interval_jump() now defaults to verbose = TRUE.

actibase 0.8.0

• flag_qc_all() is kept as an alias of acti_flag_qc_all() so that packages using the old name keep working; it will be deprecated later.
• acti_fill_zeros() gains method = "actilife", which fills only all-zero runs at least one second (sample_rate rows) long, as in idle sleep, and keeps shorter runs (e.g. a single recorded (0, 0, 0) sample) as ActiLife does. The default method = "all" is unchanged.
• get_sample_rate() now uses a message, not a warning, when it guesses the sample rate from the timestamps.

actibase 0.7.2

• Add acti_flag_cdc_labels() to map existing logical QC columns to CDC-style NHANES PAM letter codes.
• Document the CDC NHANES PAM flag mapping in the README and a package vignette, including known differences from CDC output.
• Standardize accelerometer axis columns named X/Y/Z, x/y/z, acc_X/acc_x variants, or acceleration_X/acceleration_x variants.
• Fail when upper- and lowercase versions of the same axis are both present. Warn once and prefer X/Y/Z when a complete canonical triplet and a complete acc_* or acceleration_* triplet are present.
• Add clearer names for adjacent device-limit sample flags and axis-specific contiguous device-limit runs; retain the former names as compatibility wrappers.

actibase 0.7.1

• Preserve missing values while applying minimum run lengths to logical QC flags.
• Return an empty data frame when all rows are removed by leading-zero trimming.
• Reject HMS times outside a single day instead of wrapping them to another minute.
• Return a typed empty data frame when splitting an empty set of intervals.
• Make the flag helpers configurable for different devices and sample rates. Sample rate defaults to NULL and is resolved through get_sample_rate() when continuity checks need it.
• Add general helpers for device-limit counts in caller-defined windows, contiguous device-limit runs, adjacent invalid periods, and repeated samples. CDC threshold values are used only in regression tests.
• Respect the minimum run length when an entire logical vector is TRUE.
• Break contiguous sample runs at timestamp gaps using the resolved sample rate.
• Add optional per-axis spike indicators and implement time-window spike counts using local extrema, a large-change threshold, and a caller-specified count.
• Return axis-specific interval-jump indicators and process raw samples in bounded window chunks to limit temporary memory use.
• Set the default minimum run for impossible-gravity flags to seven samples, use the device dynamic range to exclude clipped readings, and require the range from an argument or data metadata.
• Prefix flagging functions with acti_ and standardize their input argument to data; use min_count and window_seconds for window-count and duration arguments.

actibase 0.7.0

• Fix for create_day_inclusion – number of observed minutes was wrong.
• Added transformations for add_day_inclusion and min_required as attribute for create_day_inclusion.
• Roxygen: list(markdown = TRUE) added to the DESCRIPTION.

actibase 0.6.0

• New helpers for time: acti_day_index acti_day_start acti_split_intervals_at_midnight acti_repeat_time_of_day acti_time_of_day acti_minute_to_hms acti_hms_to_minute acti_time_to_minute.

actibase 0.5.0

• Added remove leading zeroes function for acti_calibrate.

actibase 0.3.0

• Bug fix for get_dynamic_range.

actibase 0.2.0

• CRAN re-submission with minor updates to the DESCRIPTION file and %>%.

actibase 0.1.0

• Initial CRAN submission.
• Baseline package added.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.