{'fraction_non_alphanumeric': 0.024282560706401765, 'fraction_numerical': 0.0, 'mean_word_length': 5.485714285714286, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Lagged Structures and Cross—Sectional Methods

Causal structures involving a dynamic relation with time lags present difficulties if approached with conventional multivariate cross-sectional techniques. It is shown that customary tests for causal structure, e. g. partial correlations, break down or yield ambiguous results. Some further implications of lagged structure, and an extension of the idea to variability in space, are discussed in the paper.