Nature of data

Which type of decision or verification do you want? It depends on the nature of the data... We can verify the trend of complex data by transforming it, and after transformation, one trend value of each data can be analyzed through regression, PCA, or clustering... then you can also verify the trend.

The question is too, too generic, as colleagues have already pointed out.

Choose a statistical model for complex decision-making by assessing the problem's nature, data characteristics, assumptions, interpretability, computational complexity, and predictive accuracy to ensure the best fit for the decision context.

Choosing a statistical model for complex decision-making involves several key steps:

By considering these factors, you can choose a statistical model that balances accuracy, complexity, and interpretability to best support your decision-making process.