acttrust | R Documentation |
A small sample (1 day length) of an ActTrust actigraphy record.
Note: We're always looking for actigraphy data samples. If you have a
personal actigraphy record made with a device that is not listed in the
actverse
package and is ok with sharing it, please contact the package
authors.
ActTrust is a trademark of Condor Instruments Ltda.
acttrust
A tsibble
with 17 columns and 1,441 rows:
Date and time of the recorded events.
R class: POSIXct
.
Wrist activity in Proportional Integral Mode (PIM).
R class: numeric
.
Wrist activity in Time Above Threshold (TAT) mode.
R class: numeric
.
Wrist activity in Zero Crossing Mode (ZCM).
R class: numeric
.
Device orientation.
R class: numeric
.
Wrist temperature in degrees Celsius
.
R class: numeric
.
External temperature in degrees Celsius
(unreliable data).
R class: numeric
.
Light intensity in lux
.
R class: numeric
.
Ambient light intensity in microwatts/square meter
.
R class: numeric
.
Red light intensity in microwatts/square centimeter
.
R class: numeric
.
Green light intensity in microwatts/square centimeter
.
R class: numeric
.
Blue light intensity in microwatts/square centimeter
.
R class: numeric
.
Infrared light intensity in microwatts/square centimeter
.
R class: numeric
.
Ultraviolet A light intensity in microwatts/square centimeter
.
R class: numeric
.
Ultraviolet B light intensity in microwatts/square centimeter
.
R class: numeric
.
A binary number indicating the moments when the subject pressed the event
button: 0
when the button is not pressed and 1
when the button is
pressed. This is commonly used to indicate when the subject goes to sleep
or wakes up.
R class: numeric
.
An integer number indicating the subject state: 0
for awake, 1
for
sleeping, 2
for resting, 4
for offwrist (device removal), 6
for
editable state 1, 7
for editable state 2, and 8
for editable state 3.
These states can be assigned by a specialist or by a validated inference
algorithm.
R class: numeric
.
This dataset was created by one of the actverse
package authors and is free
for all kinds of use. You can download the full dataset at
https://zenodo.org/record/4898822.
This data was tidied and validated with the default settings of
read_acttrust()
.
The process of tiding a dataset is understood as transforming it in input data, like described in Loo and Jonge (2018). It's a very similar process of tiding data described in the workflow proposed by Wickham and Grolemund (n.d.).
The process of validating a dataset is understood as detecting invalid data, by checking whether data satisfies certain assumptions from domain knowledge, to then, removing or, if possible, fixing them. This process can be considered as part of the process of transforming data, described in the workflow proposed by Wickham and Grolemund (n.d.).
To learn more about the concept of tidy data, see Wickham (2014) and Wickham and Grolemund (n.d.). You can find more about data validation and error location in Loo and Jonge (2018).
The actverse
package stick to the tidyverse principles. Our
code and naming schemes follow the guidelines of the tidyverse style guide.
R has a vast number of time
series standards. We choose to work with tsibble
because we think is the best standard that follows the tidyverse principles.
To make sure that the resulting data from actverse
could be easily
transformed to other standards, we decided to maintain all variable classes
as numeric
, except for the index (class
POSIXct
).
If you're looking for a good way to easily transform your data to other time
series standards, check the tsbox
package.
The raw data for this dataset can be found with
raw_data("acttrust.txt")
.
Age: 35
.
Gender: Male.
Height: 180
cm.
Weight: 85
kg.
BMI: ~26.235
(overweight).
Body part: Left wrist (non-dominant wrist).
Start: 2021-04-24 04:14:25
.
End: 2021-05-31 03:39:06
.
Days: 37
Epoch (sample interval): 60
seconds.
Mode: PIM, TAT, and ZCM.
TAT Threshold: 1024
.
Location: Sao Paulo, SP, Brazil.
UTC: -3
.
DST: FALSE
.
Light phase: 06:23:59
- 17:44:58
.
Dark phase: 17:44:59
- 06:23:58
.
Brand: Condor Instruments.
Model: ActTrust 1.
Hardware version: 3.1
.
Firmware version: 3.7
.
Manual: 1.0.13
(PT-BR).
Software: ActStudio Alpha 1.0.17 (Win | Mac).
Scoring algorithm: Condor Instruments.
The sleep diary data was not used for scoring.
Offwrist periods were indicated from sudden drops in wrist temperature.
Micro sleep states (isolated states lasting less than 5 minutes
) were
removed.
Minor adjustments were made on the sleep onset and sleep offset, taking into consideration the event button and sleep diary records.
Multiple main sleep periods: TRUE
.
Main sleep period time of day: Day or Night
.
Minimum duration for main sleep periods: 01:00:00
.
Awake period limit: 02:00:00
.
Created by Daniel Vartanian (package author).
Condor Instruments. (2019). ActTrust - user manual. Condor Instruments. Model AT0503. ActStudio version 1.0.13.
van der Loo, M., & de Jonge, E. (2018). Statistical data cleaning with applications in R. John Wiley & Sons. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.1002/9781118897126")}.
Wickham, H. (2014). Tidy Data. Journal of Statistical Software, 59(10), 1-23. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.18637/jss.v059.i10")}.
Wickham, H., & Grolemund, G. (n.d.). R for data science. (n.p.). https://r4ds.had.co.nz
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