Analyzed coins
| Coin catalogue section: | Holmoi |
| Coin corpus datasets: | Holmoi, Group 1, Holmoi, Group 2 |
| Remark: | The third staters are represented by a single specimen in Group 1 (Type 1.2) weighing 2.96 g. Only obols and hemiobols are analysed on this page. |
The numbers of analysed coins are given in Table 1. Those coins that are listed in the coin corpus without weights or that are marked there as too corroded or damaged are excluded from the analysis.
| Corpus | Number of coins as of 1 January 2025 | ||
|---|---|---|---|
| Total | Excluded | Analyzed | |
| Holmoi, Group 1, obols | 1 | 1 | |
| Holmoi, Group 2, obols | 57 | 3 | 54 |
| Holmoi, Group 2, hemiobols | 3 | 3 | |
Table 1: Numbers of analyzed coins
Analysis
Box plots1 and basic descriptive statistics of individual types are presented in Figure 1 and Table 2, respectively. Type 1.4 is represented by a single specimen weighing 0.68 g. For obols of Group 2, which are divided into Types 2.2 and 2.3 in the catalogue, the results are given for each type separately.
Figure 1: Box plots of obols and hemiobols
| Statistics | obols | hemiobols | ||
|---|---|---|---|---|
| Type 1.4 | Type 2.2 | Type 2.3 | Type 2.4 | |
| Number of coins: | 1 | 47 | 7 | 3 |
| Mean: | 0.68 | 0.65 | 0.65 | 0.30 |
| Standard deviation: | 0.07 | 0.02 | 0.06 | |
| Interquartile range: | 0.11 | 0.03 | 0.08 | |
| Skewness: | 0.14 | 1.06 | 0.68 | |
| Kurtosis: | 2.50 | 2.69 | 1.50 | |
| Minimum: | 0.49 | 0.64 | 0.26 | |
| 25th percentile: | 0.60 | 0.64 | 0.26 | |
| Median: | 0.68 | 0.66 | 0.65 | 0.27 |
| 75th percentile: | 0.71 | 0.67 | 0.34 | |
| Maximum: | 0.81 | 0.69 | 0.36 | |
Table 2: Descriptive statistics of obols and hemiobols
Figure 2 presents the relative frequency histograms. The bars represent the relative frequencies from 0.25 to 0.85 g in increments of 0.05 g and the weight of the only known obol of Type 1.4 is represented by the purple circle on the horizontal axis. Cumulative distributions are shown in Figure 3 (the weight of the single specimen of Type 1.4 is again represented by the purple circle on the horizontal axis).
Figure 2: Relative frequency histograms of obols and hemiobols
Figure 3: Cumulative distributions of obols and hemiobols
1The bottom and top of each box are the 25th and 75th percentiles of the dataset, respectively (the lower and upper quartiles). Thus, the height of the box corresponds to the interquartile range (IQR). The red line inside the box indicates the median. Whiskers (the dashed lines extending above and below the box) indicate variability outside the upper and lower quartiles. From above the upper quartile, a distance of 1.5 times the IQR is measured out and a whisker is drawn up to the largest observed data point from the dataset that falls within this distance. Similarly, a distance of 1.5 times the IQR is measured out below the lower quartile and a whisker is drawn down to the lowest observed data point from the dataset that falls within this distance. Observations beyond the whisker length are marked as outliers and are represented by small red circles.
5 August 2023 – 1 January 2025