我有股票数据,想找到每周开盘价、最高价、最低价和收盘价的股票。提前致谢。
样本数据..
name date open high low close
20MICRONS 11/07/2012 86.65 98.20 85.05 94.50
20MICRONS 12/07/2012 94.60 96.80 92.00 92.35
20MICRONS 02/11/2012 125.55 149.80 125.50 148.05
20MICRONS 07/11/2012 161.90 167.00 148.15 151.05
A2ZMES 02/07/2012 109.25 114.90 108.00 113.80
A2ZMES 03/07/2012 115.00 115.95 112.05 112.85
A2ZMES 24/09/2012 66.95 70.80 64.00 70.05
A2ZMES 25/09/2012 70.35 72.50 70.15 70.85
AANJANEYA 03/07/2012 485.15 494.80 478.65 486.50
AANJANEYA 04/07/2012 489.05 491.10 482.55 486.70
AARTIDRUGS 05/11/2012 198.35 199.00 188.00 190.50
AARTIDRUGS 06/11/2012 192.00 192.95 186.95 191.55
AARTIIND 14/09/2012 79.90 81.65 78.65 78.95
AARTIIND 17/09/2012 78.30 79.25 78.00 78.55
AARTIIND 06/12/2012 100.70 100.90 99.00 99.70
AARTIIND 07/12/2012 100.00 100.00 96.00 96.60