tianbu 发表于 2014-5-6 05:39 
可以给下几行数据吗？下载要花钱。。。
没下载，直接说下想法，用arima试试看
下单日期 出货日期 售价 成本 利润 周数
8/29/2005 9/15/2005 $0.00 $0.00 $0.00 36
8/29/2005 9/22/2005 $2,290.60 $1,752.80 $537.80 36
8/29/2005 9/19/2005 $1,679.60 $1,249.11 $430.49 36
8/29/2005 9/16/2005 $680.00 $500.64 $179.36 36
8/29/2005 10/14/2005 $1,960.00 $1,764.00 $196.00 36
8/29/2005 9/29/2005 $585.00 $450.00 $135.00 36
8/29/2005 9/15/2005 $6,495.00 $5,845.50 $649.50 36
8/29/2005 11/14/2005 $7,057.65 $6,150.32 $907.33 36
8/29/2005 9/16/2005 $746.20 $453.57 $292.63 36
8/29/2005 9/28/2005 $369.00 $280.77 $88.23 36
8/29/2005 9/28/2005 $369.00 $280.77 $88.23 36
8/29/2005 9/22/2005 $569.00 $403.55 $165.45 36
8/29/2005 9/19/2005 $282.00 $190.54 $91.46 36
8/29/2005 9/15/2005 $315.00 $252.00 $63.00 36
8/29/2005 9/12/2005 $563.14 $469.40 $93.74 36
8/29/2005 9/29/2005 $257.40 $190.00 $67.40 36
8/29/2005 9/29/2005 $2,065.00 $1,482.00 $583.00 36
8/29/2005 9/15/2005 $363.80 $256.80 $107.00 36
8/29/2005 9/19/2005 $387.50 $290.75 $96.75 36
8/29/2005 9/30/2005 $179.00 $129.10 $49.90 36
8/30/2005 9/19/2005 $72.45 $58.94 $13.51 36
8/30/2005 9/19/2005 $45.50 $34.10 $11.40 36
$27,331.84 $22,484.66 $4,847.18 36 Total
9/16/2005 9/16/2005 $674.90 $510.00 $164.90 38
9/16/2005 9/16/2005 $39.70 $30.00 $9.70 38
9/16/2005 9/29/2005 $160.00 $112.00 $48.00 38
9/16/2005 10/31/2005 $792.00 $570.00 $222.00 38
9/16/2005 9/19/2005 $256.00 $176.00 $80.00 38
9/16/2005 9/16/2005 $289.80 $235.76 $54.04 38
9/16/2005 9/22/2005 $155.00 $131.20 $23.80 38
9/16/2005 9/20/2005 $1,836.00 $1,286.00 $550.00 38
9/16/2005 9/19/2005 $624.00 $624.00 $0.00 38
$4,827.40 $3,674.96 $1,152.44 38 Total
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