Sökning: "Periodic Smoothing Splines"

Hittade 2 uppsatser innehållade orden Periodic Smoothing Splines.

  1. 1. Seasonal Adjustment of Weekly Trade Data

    Kandidat-uppsats, Uppsala universitet/Statistiska institutionen

    Författare :Hannes Jägerstedt; [2021]
    Nyckelord :Seasonal adjustment; Weekly observations; Splines; Kalman Filter; International Trade;

    Sammanfattning : The main objective of this paper is to equip the trade policy analyst with an appropriate method of seasonally adjusting trade data with weekly observations. To that end, a structural time series model containing a trend, seasonal and irregular component is specified. The seasonal component is represented by a time-varying periodic spline. LÄS MER

  3. 2. Basal body temperature curves and fitting with periodic smoothing splines

    Master-uppsats, Lunds universitet/Matematik LTH

    Författare :Ingrid Odlen; [2019]
    Nyckelord :Basal Body Temperature; Ovulation; Fertility Prediction; Natural Cycles; Fertility Tracking; Smoothing Splines; Cubic; Periodic Smoothing Splines; Curve Fitting; BBT; Mathematics and Statistics;

    Sammanfattning : Fertility tracking phone apps are widely used by women today, in order to both achieve or prevent conception. Due to the health risks of hormone based contraceptions, many women opt for non-invasive methods, such as fertility tracking. LÄS MER