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相关概念视频

Hazard Rate01:11

Hazard Rate

92
The hazard rate, also known as the hazard function or failure rate, is a statistical measure used to describe the instantaneous rate at which an event occurs, given that the event has not yet happened. From a probabilistic perspective, it represents the likelihood that a subject will experience the event in a very small time interval, conditional on surviving up to the beginning of that interval. In terms of frequency, the hazard rate can be viewed as the ratio of the number of events to the...
92
Relative Risk01:12

Relative Risk

123
Relative risk (RR) is a statistical measure commonly used in epidemiology to compare the likelihood of a particular event occurring between two groups. This metric is important for evaluating the relationship between exposure to a specific risk factor and the probability of a particular outcome. It plays a crucial role in medical research, public health studies, and risk assessment. Relative risk quantifies how much more (or less) likely an event is to occur in an exposed group compared to an...
123
Design Example: Analyzing Capacity Contours for Flood Risk Assessment01:17

Design Example: Analyzing Capacity Contours for Flood Risk Assessment

41
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
41
Response Surface Methodology01:16

Response Surface Methodology

95
Response Surface Methodology (RSM) is a collection of statistical and mathematical techniques used to develop, improve, and optimize processes. It is particularly valuable when many input variables or factors potentially influence a response variable.
The process of RSM involves several key steps:
95
Survival Tree01:19

Survival Tree

66
Survival trees are a non-parametric method used in survival analysis to model the relationship between a set of covariates and the time until an event of interest occurs, often referred to as the "time-to-event" or "survival time." This method is particularly useful when dealing with censored data, where the event has not occurred for some individuals by the end of the study period, or when the exact time of the event is unknown.
 Building a Survival Tree
Constructing a...
66

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相关实验视频

Updated: Jun 12, 2025

Design and Analysis for Fall Detection System Simplification
08:05

Design and Analysis for Fall Detection System Simplification

Published on: April 6, 2020

10.6K

重建跌倒风险评估矩阵使用R来支持预防跌倒的程序.

Jethro Raphael M Suarez1,2, Kworweinski Lafontant2,3, Amber Blount2,4

  • 1Department of Mechanical and Aerospace Engineering, University of Central Florida, Orlando, FL 32816, United States.

JAMIA open
|September 19, 2024
PubMed
概括

这项研究使用R语言优化了落风险评估 (FRA) 图形,创建了一个数字工具,用于更好地评估老年人落风险和干预反.

关键词:
在 FRA FRA FRA 中.这是一个平衡的平衡,平衡的平衡.计算机软件 计算机软件害怕跌倒,因为害怕跌倒.年龄较大的成年人.

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Community-based Adapted Tango Dancing for Individuals with Parkinson's Disease and Older Adults
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An R-Based Landscape Validation of a Competing Risk Model
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An R-Based Landscape Validation of a Competing Risk Model

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相关实验视频

Last Updated: Jun 12, 2025

Design and Analysis for Fall Detection System Simplification
08:05

Design and Analysis for Fall Detection System Simplification

Published on: April 6, 2020

10.6K
Community-based Adapted Tango Dancing for Individuals with Parkinson's Disease and Older Adults
09:19

Community-based Adapted Tango Dancing for Individuals with Parkinson's Disease and Older Adults

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科学领域:

  • 老年学是一门学科.
  • 医疗信息学 医疗信息学
  • 计算科学 计算科学

背景情况:

  • 跌倒风险评估 (FRA) 对老年人干预至关重要.
  • 传统的FRA方法通常是基于纸张的,效率较低.
  • 数字工具可以增强数据可视化和反,用于降落风险评估.

研究的目的:

  • 为了优化跌倒风险评估 (FRA) 图形使用R语言.
  • 开发一种用于对老年人跌倒风险评估的计算工具.
  • 通过加强FRA数据可视化和分析来改进干预计划.

主要方法:

  • 使用了RStudio和R语言包 (ggplot2,网格).
  • 开发代码来重建FRA矩阵.
  • 实现了用于数据可视化和分析的功能.

主要成果:

  • 通过使用 R 代码成功重建了 FRA 矩阵.
  • 使研究人员和临床医生能够将参与者数据绘制成 FRA 矩阵的图形.
  • 展示了对FRA数据操纵的简化方法.

结论:

  • R 代码提供了一个动态和适应性的 FRA 工具.
  • 这种数字化方法改进了传统的纸笔方法.
  • 对研究人员和老年人来说,提高了可读性和可用性.