The Czech Republic's climate. The Czech Republic lies in a temperate climate zone with pleasantly mild summers and winters with only moderate amounts of precipitation. The average annual temperature ranges from 5.5C (42F ) to 10C (50F ), but temperatures are lower in the mountains.
Linear vs logarithmic scales. 1  Human hearing is better measured on a logarithmic scale than a linear scale. 2  On a linear scale, a change between two values is perceived on the basis of the difference between the values.  On a logarithmic scale, a change between two values is perceived on the basis of the ratio of the two values.
Difference between additive and multiplicative models. Multiplicative models for time series are very widely used. It is therefore worth ensuring that you can recognise the features that suggest a multiplicative model.Additive and multiplicative models can only be easily distinguished when there is noticable trend in the time series.n the log scale, the seasonal effect is the same throughout the time period. Now use the slider to adjust the scale back to a plot of the original data. The multiplicative model implies lower seasonal variation when visitor arrivals are low, and higher seasonal variation when visitor numbers are high.