Published on in Vol 7, No 3 (2019): March
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/12171, first published
.
![Temporal Stability of Smartphone Use Data: Determining Fundamental Time Unit and Independent Cycle Temporal Stability of Smartphone Use Data: Determining Fundamental Time Unit and Independent Cycle](https://asset.jmir.pub/assets/0cfeb6f64e5db2e7b2a9e812d792ae37.png 480w,https://asset.jmir.pub/assets/0cfeb6f64e5db2e7b2a9e812d792ae37.png 960w,https://asset.jmir.pub/assets/0cfeb6f64e5db2e7b2a9e812d792ae37.png 1920w,https://asset.jmir.pub/assets/0cfeb6f64e5db2e7b2a9e812d792ae37.png 2500w)
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