| 44 | } |
| 45 | |
| 46 | func (s *ContinuousStats) summary(a []string) { |
| 47 | originalCount := len(a) |
| 48 | data := stats.LoadRawData(a) |
| 49 | s.data = data |
| 50 | s.count = len(data) |
| 51 | s.missing = originalCount - s.count |
| 52 | |
| 53 | if s.count == 0 { |
| 54 | s.summaryData = [][]string{{"Total values", I2S(originalCount)}, {"Missing/Invalid", I2S(s.missing)}, {"No numeric data", ""}} |
| 55 | return |
| 56 | } |
| 57 | |
| 58 | s.min, _ = stats.Min(data) |
| 59 | s.max, _ = stats.Max(data) |
| 60 | s.mean, _ = stats.Mean(data) |
| 61 | s.median, _ = stats.Median(data) |
| 62 | s.sd, _ = stats.StandardDeviation(data) |
| 63 | s.variance, _ = stats.Variance(data) |
| 64 | s.sum, _ = stats.Sum(data) |
| 65 | |
| 66 | q, _ := stats.Quartile(data) |
| 67 | s.q1, s.q2, s.q3 = q.Q1, q.Q2, q.Q3 |
| 68 | s.iqr = s.q3 - s.q1 |
| 69 | |
| 70 | // Calculate mode |
| 71 | s.mode, s.modeCount = calculateMode(data) |
| 72 | |
| 73 | summaryArray := [][]string{ |
| 74 | {"Total values", I2S(originalCount)}, |
| 75 | {"Valid numbers", I2S(s.count)}, |
| 76 | {"Missing/Invalid", I2S(s.missing)}, |
| 77 | {"", ""}, |
| 78 | {"Min", F2S(s.min)}, |
| 79 | {"Max", F2S(s.max)}, |
| 80 | {"Range", F2S(s.max - s.min)}, |
| 81 | {"Sum", F2S(s.sum)}, |
| 82 | {"", ""}, |
| 83 | {"Mean", F2S(s.mean)}, |
| 84 | {"Median", F2S(s.median)}, |
| 85 | {"Mode", F2S(s.mode) + " (" + I2S(s.modeCount) + "x)"}, |
| 86 | {"", ""}, |
| 87 | {"Std Dev", F2S(s.sd)}, |
| 88 | {"Variance", F2S(s.variance)}, |
| 89 | {"", ""}, |
| 90 | {"Q1 (25%)", F2S(s.q1)}, |
| 91 | {"Q2 (50%)", F2S(s.q2)}, |
| 92 | {"Q3 (75%)", F2S(s.q3)}, |
| 93 | {"IQR", F2S(s.iqr)}, |
| 94 | } |
| 95 | s.summaryData = summaryArray |
| 96 | } |
| 97 | |
| 98 | func calculateMode(data []float64) (float64, int) { |
| 99 | if len(data) == 0 { |