Engineering Functions

Macro Name	Returns	Function
DELAY	One column for each input column	Returns the input columns' values delayed by a specified number of time steps
GRID	One column for each input column	Returns a grid of all possible value combinations (one per row)
LAG	One column for each input column	Returns the input columns' values lagging by a specified number of time steps
NORM_MAXMIN	One column for each input column	Computes the min/max normalization of a data range
NORM_SIGMOID	One column for each input column	Computes the sigmoidal normalization of a data range
NORM_ZSCORE	One column for each input column	Computes the z-score normalization of a data range
PCA	One column for each input column, plus one	Computes the eigenvectors for principal components of the specified data range
PCA_FEATURES	One column for each input column, plus one	Extracts nfeatures from the specified data range
SAMPLE_RANDOM	One column for each input column	Returns columns of n cells, each containing a random sample from the specified data range
SLIDE_WINDOW	Number of input columns times the width parameter	Creates a pattern from a specified window and slides it down to create the next pattern
SORT	One column for each input column	Sorts the values in the specified data range in ascending or descending order
SUBSAMPLE	One column for each input column	Reduces data by returning every n-th row value