Statistik for geografer Lektion 8
Hvordan beskrives fordelingen?
Tæthedsfunktion
Middelværdi
Beskrivelse af variationen
Den uniforme fordeling
Normalfordelingen
Standard normalfordelingen
QQ-plot – What and How?
Output
Annual Maximums of Daily Rainfall in Sydney Not nice and normal QQ-plot is not terrible though
Log-transform Much nicer!!
Detrended QQ-plots Here we see the difference between raw and log-transformed data Deviations are structured Deviations seem to be scattered unstructured
Skewness og QQ-plot Venstre-skæv
Skewness og QQ-plot Højre-skæv
Box-plot Outliers 75% percentil Median
Boxplot illustrerer forskelle