Abstract
In Chapter 6 we encountered what is almost always a fact of life in functional data. Curves vary in two ways: vertically, so that certain oscillations and levels are larger in some curves than others; and horizontally, so that the timings or locations of prominent features in curves vary from curve to curve. We call these two types of variation amplitude and phase, respectively. You might want to glance back at Figure 6.9 to see a schematic diagram illustrating this concept.
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© 2002 Springer-Verlag New York, Inc.
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(2002). Time Warping Handwriting and Weather Records. In: Ramsay, J.O., Silverman, B.W. (eds) Applied Functional Data Analysis: Methods and Case Studies. Springer Series in Statistics. Springer, New York, NY. https://doi.org/10.1007/978-0-387-22465-7_7
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DOI: https://doi.org/10.1007/978-0-387-22465-7_7
Publisher Name: Springer, New York, NY
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