Update index.qmd

index.qmd

@@ -66,8 +66,8 @@ Welcome to our course Data Analytics with Statistics! 👋
 |	53	|	Regression example happier	|		|	<!--	[📑](https://docs.google.com/presentation/d/1ZrzKUPZqp7GlCAh4uFpXnvUW6kQTvUgD2G-YZ7B24aM/export/pdf)	-->	|		|	[💻](https://colab.research.google.com/github/kirenz/lab-models/blob/main/mr/happier-c.ipynb)	|		|
 |	54	|	Main model challenges	|		|	<!--	[📑](https://docs.google.com/presentation/d/1WPUVfUe4rZu1bt61IwjneHqldhH9nC6U0F_u7Mj_ZL4/export/pdf)	-->	|		|		|		|
 |	55	|	Data splitting	|		|	<!--	[📑](https://docs.google.com/presentation/d/16DAGzUTUzI_prncqDeZx2HhpNnM_xTOL_Na0xTaDeVk/export/pdf)	-->	|		|	[💻](https://colab.research.google.com/github/kirenz/lab-models/blob/main/mr/happier-splitting-c.ipynb)	|		|
-|	56	|	Sales prediction	|		|	<!--	[📑](https://docs.google.com/presentation/d/1CQUpb2fwezmni-GUeTsbxkE9ZekKK69eAzqKEdUBAm8/export/pdf)	-->	|		|	[💻](https://colab.research.google.com/github/kirenz/lab-altair/blob/main/ae/04-2-stacked-bar-chart-altair.ipynb)	|		|
-|	57	|	Sales prediction with data splitting	|		|	<!--		-->	|		|	[💻](https://colab.research.google.com/github/kirenz/lab-altair/blob/main/ae/04-2-standardized-bar-chart-altair.ipynb)	|		|
+|	56	|	Sales prediction	|		|	<!--	[📑](https://docs.google.com/presentation/d/1CQUpb2fwezmni-GUeTsbxkE9ZekKK69eAzqKEdUBAm8/export/pdf)	-->	|		|	[💻](https://colab.research.google.com/github/kirenz/lab-ims/blob/main/ims/08c-1-sales.ipynb)	|		|
+|	57	|	Sales prediction with data splitting	|		|	<!--		-->	|		|	[💻](https://colab.research.google.com/github/kirenz/lab-ims/blob/main/ims/08c-2-sales.ipynb)	|		|
 |	58	|	**Advanced Linear Regression models**	|		|	<!--		-->	|		|		|		|
 |	59	|	Regression splines	|	[📚](https://www.statlearning.com/)	|	<!--		-->	|		|	[💻](https://colab.research.google.com/github/kirenz/notebooks/blob/main/ims/copy/99-1-splines.ipynb)	|		|
 |	60	|	Generalized additive models	|	[📚](https://www.statlearning.com/)	|	<!--		-->	|		|	[💻](https://colab.research.google.com/github/kirenz/notebooks/blob/main/ims/copy/99-1-gam.ipynb)	|		|