Statistics in WR: Lecture 13

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Statistics in WR Lecture 13

• Key Themes
• ANOVA for sediment data
• Fourier series for diurnal cycles
• Fourier series for seasonal cycles

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Analysis of Variance (ANOVA)
Assumptions
There are several variants (one factor, two
factor, two factor with replication). We will
deal just with One Factor ANOVA
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Single Factor ANOVA
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Single Factor ANOVA
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ANOVA Formulas
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Single Factor ANOVA
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Groups of Sediment Load Data (Ex3)
3.5 x 106
5.5 x 106
480,000
USGS1 Mean 218,000 Ton/yr
TWDB Mean 189,000 Ton/yr
Overall Mean 183,000 Ton/yr
USGS2 Mean 97,000 Ton/yr
Zero