Why some columns are grayed after Data Analysis and cannot be selected as targets?
The grayed columns cannot be converted for the use with neural networks. These are typically text columns, data/time columns, or columns that have a lot of misplaced or missing data. You may control the process of column accepting/ignoring in Expert Mode: • The handling of missing and misplaced values can be specified at Data Analysis step. • columns identified as containing text can be considered as categorical by ordering Alyuda Forecaster to accept them. • The date/time columns may be used only after specifying the required periodicity of their encoding.