Question: For Downside Deviation, what is Dollar General's value from October 15, 2021 to April 01, 2022? (Default target return is 0; not annualized) Using unadjusted prices, write down the indicator formula, collect the raw data, calculate the answer, and keep four decimal places. Please list the raw data and key calculation process.
Formula: DD = \sqrt{1 / N * \sum_{t=1}^{N} min(r_t - rf, 0)^2}
Data:
date,close
2021-10-14,212.8000030517578
2021-10-15,212.8000030517578
2021-10-18,213.6999969482422
2021-10-19,213.7899932861328
2021-10-20,215.22999572753903
2021-10-21,218.94000244140625
2021-10-22,220.30999755859372
2021-10-25,222.4900054931641
2021-10-26,221.52999877929688
2021-10-27,220.3699951171875
2021-10-28,220.9199981689453
2021-10-29,221.5200042724609
2021-11-01,220.47000122070312
2021-11-02,221.83999633789065
2021-11-03,223.72000122070312
2021-11-04,226.2100067138672
2021-11-05,225.6300048828125
2021-11-08,220.92999267578125
2021-11-09,220.17999267578125
2021-11-10,220.7700042724609
2021-11-11,221.27999877929688
2021-11-12,225.0
2021-11-15,227.0
2021-11-16,230.3300018310547
2021-11-17,222.8800048828125
2021-11-18,222.33999633789065
2021-11-19,224.5500030517578
2021-11-22,225.9600067138672
2021-11-23,225.13999938964844
2021-11-24,223.42999267578125
2021-11-26,224.4199981689453
2021-11-29,225.07000732421875
2021-11-30,221.3000030517578
2021-12-01,222.7899932861328
2021-12-02,215.80999755859372
2021-12-03,222.0
2021-12-06,225.52999877929688
2021-12-07,224.5
2021-12-08,221.41000366210935
2021-12-09,222.3300018310547
2021-12-10,222.3999938964844
2021-12-13,226.0
2021-12-14,225.4499969482422
2021-12-15,226.1199951171875
2021-12-16,225.66000366210935
2021-12-17,222.5
2021-12-20,220.3999938964844
2021-12-21,221.72000122070312
2021-12-22,220.22000122070312
2021-12-23,221.3300018310547
2021-12-27,224.69000244140625
2021-12-28,228.32000732421875
2021-12-29,233.5800018310547
2021-12-30,235.8300018310547
2021-12-31,235.8300018310547
2022-01-03,235.47999572753903
2022-01-04,233.6999969482422
2022-01-05,233.8000030517578
2022-01-06,235.8000030517578
2022-01-07,238.2700042724609
2022-01-10,236.30999755859372
2022-01-11,228.6499938964844
2022-01-12,228.6000061035156
2022-01-13,223.05999755859372
2022-01-14,217.0800018310547
2022-01-18,213.1100006103516
2022-01-19,219.94000244140625
2022-01-20,212.1000061035156
2022-01-21,210.17999267578125
2022-01-24,216.5800018310547
2022-01-25,212.00999450683597
2022-01-26,204.7100067138672
2022-01-27,205.33999633789065
2022-01-28,204.3300018310547
2022-01-31,208.47999572753903
2022-02-01,209.1199951171875
2022-02-02,206.69000244140625
2022-02-03,205.3699951171875
2022-02-04,202.3600006103516
2022-02-07,200.58999633789065
2022-02-08,202.7700042724609
2022-02-09,205.7899932861328
2022-02-10,202.1000061035156
2022-02-11,200.6300048828125
2022-02-14,200.6100006103516
2022-02-15,199.1499938964844
2022-02-16,197.3500061035156
2022-02-17,197.1199951171875
2022-02-18,199.97000122070312
2022-02-22,191.94000244140625
2022-02-23,188.33999633789065
2022-02-24,190.8000030517578
2022-02-25,198.9900054931641
2022-02-28,198.33999633789065
2022-03-01,201.0500030517578
2022-03-02,205.41000366210935
2022-03-03,206.2899932861328
2022-03-04,210.97999572753903
2022-03-07,203.72000122070312
2022-03-08,199.25999450683597
2022-03-09,207.22000122070312
2022-03-10,206.0800018310547
2022-03-11,205.5500030517578
2022-03-14,208.69000244140625
2022-03-15,214.25
2022-03-16,212.4900054931641
2022-03-17,221.94000244140625
2022-03-18,229.6300048828125
2022-03-21,228.3999938964844
2022-03-22,226.05999755859372
2022-03-23,221.5500030517578
2022-03-24,220.8999938964844
2022-03-25,221.47000122070312
2022-03-28,226.3000030517578
2022-03-29,228.5200042724609
2022-03-30,227.47000122070312
2022-03-31,222.6300048828125
2022-04-01,226.3000030517578

Indicator data:
Answer: 0.0113