Table 1.
Summary of the statistical properties of the different samples analysed in this study.
| Variable | Count | Mean | STD | Min | 25% | 50% | 75% | Max | Skew | Kurt | Zskew | Zkurt | Normal | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | (12) | (13) | (14) | |
| Log peak int | all | 59 | 5.09 | 0.93 | 3.77 | 4.41 | 4.79 | 5.44 | 7.69 | 1.29 | 3.93 | 3.66, 0.00 | 1.63, 0.10 | No |
| (w-con) | (30) | (5.41) | (1.05) | (3.77) | (4.58) | (5.21) | (6.04) | (7.69) | (0.76) | (2.71) | (1.87, 0.06) | (0.08, 0.93) | (Yes) | |
| Log flare int | all | 38 | −4.5 | 0.75 | −6.32 | −5.03 | −4.35 | −3.93 | −3.27 | −0.53 | 2.58 | −1.47, 0.14 | −0.27, 0.79 | Yes |
| (w-con) | (18) | (−4.62) | (0.81) | (−6.32) | (−5.15) | (−4.59) | (−3.97) | (−3.27) | (−0.26) | (2.29) | (−0.57, 0.57) | (−0.41, 0.68) | (Yes) | |
| Log shock spe | all | 52 | 3.22 | 0.15 | 2.90 | 3.10 | 3.21 | 3.35 | 3.53 | 0.18 | 2.32 | 0.59, 0.55 | –1.14, 0.25 | Yes |
| (w-con (1)) | (24) | (3.23) | (0.15) | (3.04) | (3.13) | (3.17) | (3.27) | (3.53) | (0.92) | (2.69) | (2.04, 0.04) | (0.12, 0.90) | (Yes) | |
| Log CME spe | all | 55 | 3.08 | 0.20 | 2.41 | 2.96 | 3.11 | 3.23 | 3.43 | −0.81 | 3.9 | −2.47, 0.01 | 1.57, 0.11 | Yes |
| (w-con) | (26) | (3.07) | (0.22) | (2.41) | (2.97) | (3.08) | (3.19) | (3.43) | (−0.97) | (4.62) | (−2.19, 0.03) | (1.98, 0.05) | (Yes) | |
| Log CME wid | all | 55 | 1.83 | 0.15 | 1.36 | 1.74 | 1.84 | 1.89 | 2.20 | −0.25 | 4.17 | −0.83, 0.40 | 1.83, 0.07 | Yes |
| (w-con) | (26) | (1.85) | (0.14) | (1.66) | (1.75) | (1.82) | (1.89) | (2.20) | (0.95) | (3.20) | (2.15, 0.03) | (0.79, 0.43) | (Yes) | |
| δ200 | all | 42 | −1.94 | 0.19 | −2.56 | −1.99 | −1.92 | −1.82 | −1.55 | −1.11 | 5.26 | −2.88, 0.00 | 2.47, 0.01 | No |
| (w-con) | (23) | (−1.97) | (0.14) | (−2.41) | (−2.01) | (−1.94) | (−1.90) | (−1.81) | (−1.85) | (6.64) | (−3.47, 0.00) | (2.88, 0.00) | (No) | |
Notes. Column 1: Variables for the full sample and well-connected events (in parenthesis, namely −65° ≤ connection angle ≤ 33°) in the following units, respectively: peak intensity (cm2 sr s MeV)−1, flare intensity (W m−2), CME-driven shock speed (km s−1), CME speed (km s−1), CME width (deg), spectral index (–). Column 2: Total number of entries. Column 3: Average of all entries. Column 4: Standard deviation. Column 5: Minimum value. Columns 6–8: 25, 50 (median), and 75 percentile mark, respectively. Column 9: Maximum value. Column 10: Skewness, namely the measure of the lack of symmetry. Column 11: Kurtosis, namely the measure of whether the data are heavy-tailed or light-tailed relative to a normal distribution. Column 12: Z-skewness: statistics, p-value. Column 13: Z-kurtosis: statistics, p-value. Column 14: Whether data can be considered normally distributed or not based on several criteria: visual inspection of the distribution, Z-value (both skewness and kurtosis; West et al. 1995), Normality test (not shown; D’Agostino & Pearson 1973), and Anderson-Darling test (not shown; Stephens 1974).
In Col. 1, only the Anderson-Darling test (not shown; Stephens 1974) is not fulfilled.
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