How are Gamm interactions different from ggplot2 interactions?
Numeric interactions we do differently (see later section). The results here indicate that the different clarities do alter the price. But notice that the main effects for each clarity is not listed here. The tidier for gam only includes the smooth terms, not the parametric ones.
How to smooth interactions between factors and Numerics?
For interactions between numeric and factors, we use the by option in the smooths, and the numeric variable also needs its own smooth, and the factor also needs to be added as a simple extra predictor. This gives you a full factorial. Note if the by predictor is numeric, it is not an interaction, but its own main effect.
Is the GAMM curve linear or flattening?
But it does not look to be linear, there seems to be a peak around 2.2 carat, with a flattening and then a slower increase again later, with higher uncertainty (look at the CI bands). table is a more odd little thing. It looks so strange, but we can play with it anyway.
What are the variables in a diamond price model?
This dataset is a collection of observations of diamonds, with variables like price, cut, carat, clarity etc. Our purpose is to try to create a model that predicts well the price of a diamond, given these variables, and to see which variables contribute more or less to the price of the diamond.
Is the tidier for GAM the same as GAM?
The tidier for gam only includes the smooth terms, not the parametric ones. They have different summary statistics, so having them in the same table require some extra steps, but I still usually do so, atleast to get an idea of what I’m looking at.
https://www.youtube.com/channel/UCbD1CUDAapa2INasI8yqLoA
Why do gamma rays have to interact with detectors?
A gamma ray must interact with a detector in order to be “seen.” Although the major isotopes of uranium and plutonium emit gamma rays at fixed energies and rates, the gamma-ray intensity measured outside a sample is always attenuated because of gamma-ray interactions with the sample.