Thomas Ruf, Claudio Signer, Walter Arnold, Sebastian G. Vetter, Claudia Bieber
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过去几十年来，人们对长期心率记录，尤其是自由生活动物的心率记录越来越感兴趣。这主要是因为组织的大部分新陈代谢活动都是基于心脏的氧气输送。然而，使用记录仪记录的人类和动物的心率或其他生理变量往往含有噪声。有时会通过人工或滤波器剔除虚假测量值，滤波器会根据信号的形状或频率剔除变量。我们介绍了一个 R 软件包 boxfilter，它能让用户通过计算滑动窗口内近邻的数量来消除噪声。根据所选的截止值，邻域比例较低的焦点将作为噪声被剔除。所有三个参数，即窗口宽度和高度以及截止值，都可以自动计算。窗口宽度和高度以及截断值这三个参数都可以自动计算。截断值的选择至关重要，超过这个值的数据点将被丢弃。当然，软件包方框滤波器无法解决完全错误的测量所造成的问题。与人眼一样，该滤波器也会偏好那些属于某种模式（如密集带）的点，而剔除孤立的值。除心率外，方框过滤器还可用于其他非瞬时变化的测量值，如体温、血压或睡眠参数。
期刊介绍：
A British Ecological Society journal, Methods in Ecology and Evolution (MEE) promotes the development of new methods in ecology and evolution, and facilitates their dissemination and uptake by the research community. MEE brings together papers from previously disparate sub-disciplines to provide a single forum for tracking methodological developments in all areas.
MEE publishes methodological papers in any area of ecology and evolution, including:
-Phylogenetic analysis
-Statistical methods
-Conservation & management
-Theoretical methods
-Practical methods, including lab and field
-This list is not exhaustive, and we welcome enquiries about possible submissions. Methods are defined in the widest terms and may be analytical, practical or conceptual.
A primary aim of the journal is to maximise the uptake of techniques by the community. We recognise that a major stumbling block in the uptake and application of new methods is the accessibility of methods. For example, users may need computer code, example applications or demonstrations of methods.
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