A time-series data analyzing apparatus which extracts a composite factor time-series pattern from time-series data. It is demanded to improve reliability of the APD with a lower production cost. The pilots can be structured into a single OFDM symbol andor multiple OFDM symbols. An air outlet is defined between two neighboring guiding plates for the airflow flowing out the space into the passage. Each of the yarns of a pair of the first set of bottom MD yarns interweaves with the bottom CMD yarns in the same pattern.