Table 2.
Summary statistics
| Variable | Explanation | Unit | Max | Min | Mean | Std |
|---|---|---|---|---|---|---|
| Daily_infection | Daily rates of infection of COVID-19 (i.e., confirmed cases) | Cases | 77,262 | 17,238 | 51,105.063 | 21,523.618 |
| Suspected_infection | Total number of suspected infection of COVID-19 | Cases | 26,359 | 3,434 | 15,511 | 8,368.905 |
| ICU_patients | Total number of ICU patients of COVID-19 | Cases | 11,977 | 2,296 | 7,640.875 | 3,358.452 |
| Death_cases | Total number of death cases of COVID-19 | Cases | 2,595 | 361 | 1,310.938 | 701.169 |
| Recovery | Total number of recovery of COVID-19 | Cases | 24,758 | 475 | 7,906.188 | 7,181.045 |
| Total_revenue | The overall measure of all sources of a company's income | RMB 10,000 yuan | 97,360,000 | − 36,100 | 854,738.899 | 4,046,225.602 |
| Operating_cost | Costs incurred by the enterprise in all its business | RMB 10,000 yuan | 91,950,000 | 769 | 752,321.270 | 3,472,541.850 |
| Operating _profit | Profits obtained by the enterprise in all its business | RMB 10,000 yuan | 31,210,000 | − 385,100 | 116,538.292 | 985,136.004 |
| Price_to_book_ratio | A stock's capitalization divided by its book value | % | 278.600 | 0.321 | 4.049 | 8.592 |
| Buy_vol | Number of stocks bought in marketplaces on a daily basis | 100 shares | 90,989,970 | 50 | 353,349.360 | 2,304,268.882 |
| Total_market_capitalization | Total value of a company's securities as quoted on a stock market | RMB yuan | 1.94E + 12 | 729,540,000 | 18,372,506,705 | 73,987,013,699 |
| Change | The size of change in the price of a stock | RMB yuan per share | 63.520 | − 49.800 | 0.117 | 1.624 |
| Pct_chg | The percentage change in the price of a stock | % | 108.544 | − 27.120 | 0.477 | 4.149 |
| Close | The daily closing price of a stock | RMB yuan per share | 1,118.000 | 1 | 17.071 | 32.231 |