{ "cells": [ { "cell_type": "markdown", "metadata": {}, "source": [ "# Sleep fragmentation via state transition probability" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "\"Quantification of the Fragmentation of Rest-Activity Patterns in Elderly Individuals Using a State Transition Analysis\"\n", "\n", "Andrew S.P. Lim, MD, Lei Yu, PhD, Madalena D. Costa, PhD, Aron S. Buchman, MD, David A. Bennett, MD, Sue E. Leurgans, PhD, Clifford B. Saper, MD, PhD\n", "\n", "\n", "Sleep, Volume 34, Issue 11, 1 November 2011, Pages 1569–1581, https://doi.org/10.5665/sleep.1400" ] }, { "cell_type": "code", "execution_count": 1, "metadata": { "ExecuteTime": { "end_time": "2023-01-30T15:48:23.247158Z", "start_time": "2023-01-30T15:48:21.469618Z" }, "scrolled": true }, "outputs": [], "source": [ "import pyActigraphy" ] }, { "cell_type": "code", "execution_count": 2, "metadata": { "ExecuteTime": { "end_time": "2023-01-30T15:48:23.250206Z", "start_time": "2023-01-30T15:48:23.248507Z" } }, "outputs": [], "source": [ "import plotly.graph_objs as go" ] }, { "cell_type": "code", "execution_count": 3, "metadata": { "ExecuteTime": { "end_time": "2023-01-30T15:48:23.268207Z", "start_time": "2023-01-30T15:48:23.251688Z" } }, "outputs": [], "source": [ "# create objects for layout and traces\n", "layout = go.Layout(title=\"\",xaxis=dict(title=\"\"), showlegend=False)" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "## Read an individual actigraphy file" ] }, { "cell_type": "code", "execution_count": 4, "metadata": { "ExecuteTime": { "end_time": "2023-01-30T15:48:23.273848Z", "start_time": "2023-01-30T15:48:23.271125Z" } }, "outputs": [], "source": [ "# retrieve path to example files\n", "import os\n", "fpath = os.path.join(os.path.dirname(pyActigraphy.__file__),'tests/data/')" ] }, { "cell_type": "code", "execution_count": 5, "metadata": { "ExecuteTime": { "end_time": "2023-01-30T15:48:23.294264Z", "start_time": "2023-01-30T15:48:23.275769Z" } }, "outputs": [], "source": [ "raw = pyActigraphy.io.read_raw_awd(fpath+'example_01.AWD', period='7 days')" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "## Quantify the Rest-to-activity transition probability" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "help(raw.kRA)" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "#### Rest to activity (kRA)" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "Before calculating the 'kRA', let's look at the distribution of the transition probabilities as a function of the length of the sustained rest periods:" ] }, { "cell_type": "code", "execution_count": 6, "metadata": { "ExecuteTime": { "end_time": "2023-01-30T15:48:23.342788Z", "start_time": "2023-01-30T15:48:23.295431Z" } }, "outputs": [], "source": [ "pRA, pRA_weights = raw.pRA(0, start='00:00:00', period='8H')" ] }, { "cell_type": "code", "execution_count": 7, "metadata": { "ExecuteTime": { "end_time": "2023-01-30T15:48:23.346492Z", "start_time": "2023-01-30T15:48:23.343854Z" } }, "outputs": [], "source": [ "layout.update(title=\"Rest->Activity transition probability\",xaxis=dict(title=\"Time [min]\"), showlegend=False);" ] }, { "cell_type": "code", "execution_count": 8, "metadata": { "ExecuteTime": { "end_time": "2023-01-30T15:48:23.460500Z", "start_time": "2023-01-30T15:48:23.347369Z" } }, "outputs": [ { "data": { "text/html": [ " \n", " " ] }, "metadata": {}, "output_type": "display_data" }, { 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