翻訳と辞書 Words near each other ・ Sinus of Morgagni (pharynx) ・ Sinus ostium ・ Sinus pericranii ・ Sinus rectus ・ Sinus rhythm ・ Sinus Roris ・ Sinus Sabaeus quadrangle ・ Sinus Successus ・ Sinus tachycardia ・ Sinus tubercle ・ Sinus venosus ・ Sinus venosus atrial septal defect ・ Sinusitis ・ Sinusoid (blood vessel) ・ Sinusoidal hemangioma ・ Sinusoidal model ・ Sinusoidal plane-wave solutions of the electromagnetic wave equation ・ Sinusoidal projection ・ Sinusoidal pump ・ Sinusoidal spiral ・ Sinusonasus ・ Sinusotomy ・ Sinustrombus ・ Sinustrombus latissimus ・ Sinustrombus sinuatus ・ Sinutor ・ Sinutropis ・ Sinvest ・ Sinwa Formation ・ Sinwan Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Sinusoidal model ： ウィキペディア英語版 Sinusoidal model In statistics, signal processing, and time series analysis, a sinusoidal model to approximate a sequence ''Yi'' is: :$Y\_i\; =\; C\; +\; \backslash alpha\backslash sin(\backslash omega\; T\_i\; +\; \backslash phi)\; +\; E\_i$ where ''C'' is constant defining a mean level, α is an amplitude for the sine wave, ω is the frequency, ''Ti'' is a time variable, φ is the phase, and ''Ei'' is the error sequence in approximating the sequence ''Yi'' by the model. This sinusoidal model can be fit using nonlinear least squares; to obtain a good fit, nonlinear least squares routines may require good starting values for the constant, the amplitude, and the frequency. Fitting a model with a single sinusoid is a special case of least-squares spectral analysis. ==Good starting value for ''C''== A good starting value for ''C'' can be obtained by calculating the mean of the data. If the data show a trend, i.e., the assumption of constant location is violated, one can replace ''C'' with a linear or quadratic least squares fit. That is, the model becomes :$Y\_i\; =\; (B\_0\; +\; B\_1T\_i)\; +\; \backslash alpha\backslash sin(2\backslash pi\backslash omega\; T\_i\; +\; \backslash phi)\; +\; E\_i$ or :$Y\_i\; =\; (B\_0\; +\; B\_1T\_i+B\_2T\_i^2)\; +\; \backslash alpha\backslash sin(2\backslash pi\backslash omega\; T\_i\; +\; \backslash phi)\; +\; E\_i$ 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sinusoidal model」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.