Fig. 4

The adjacency weight matrix for 45-day and 30-day window sizes. In axes, ‘potato’, ‘lettuce’, ‘onion’, and ‘cucumber’ represent the wholesale prices, and ‘hightmp’ the maximum temperature, ‘lowtmp’ the minimum temperature, ‘avgtmp’ the average temperature, ‘rainamt’ the precipitation, ‘avghumid’ the average humidity, ‘dtt’ the diurnal temperature range, and ‘calweek’ the week number.