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fixed an issue with summarize function
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| package field | ||
|
|
||
| import ( | ||
| "github.com/grafana/grafana-plugin-sdk-go/data" | ||
| ) | ||
|
|
||
| func Count(field *data.Field) (float64, error) { | ||
| return float64(field.Len()), nil | ||
| } | ||
|
|
||
| func First(field *data.Field) (any, error) { | ||
| if field.Len() == 0 { | ||
| return nil, nil | ||
| } | ||
| if field.Nullable() { | ||
| if _, ok := field.ConcreteAt(0); !ok { | ||
| return nil, nil | ||
| } | ||
| } | ||
| return field.At(0), nil | ||
| } | ||
|
|
||
| func Last(field *data.Field) (any, error) { | ||
| if field.Len() == 0 { | ||
| return nil, nil | ||
| } | ||
| if field.Nullable() { | ||
| if _, ok := field.ConcreteAt(field.Len() - 1); !ok { | ||
| return nil, nil | ||
| } | ||
| } | ||
| return field.At(field.Len() - 1), nil | ||
| } | ||
|
|
||
| func Sum(field *data.Field) (float64, error) { | ||
| sum := float64(0) | ||
| for i := 0; i < field.Len(); i++ { | ||
| if v, err := field.NullableFloatAt(i); v != nil && err == nil { | ||
| sum += *v | ||
| } | ||
| } | ||
| return sum, nil | ||
| } | ||
|
|
||
| func Min(field *data.Field) (float64, error) { | ||
| var min *float64 | ||
| for i := 0; i < field.Len(); i++ { | ||
| if v, err := field.NullableFloatAt(i); v != nil && err == nil { | ||
| if min == nil || *v < *min { | ||
| min = v | ||
| } | ||
| } | ||
| } | ||
| return *min, nil | ||
| } | ||
|
|
||
| func Max(field *data.Field) (float64, error) { | ||
| var max *float64 | ||
| for i := 0; i < field.Len(); i++ { | ||
| if v, err := field.NullableFloatAt(i); v != nil && err == nil { | ||
| if max == nil || *v > *max { | ||
| max = v | ||
| } | ||
| } | ||
| } | ||
| return *max, nil | ||
| } | ||
|
|
||
| func Mean(field *data.Field) (float64, error) { | ||
| sum := float64(0) | ||
| for i := 0; i < field.Len(); i++ { | ||
| if v, err := field.NullableFloatAt(i); v != nil && err == nil { | ||
| sum += *v | ||
| } | ||
| } | ||
| if field.Len() < 1 { | ||
| return 0, nil | ||
| } | ||
| return sum / float64(field.Len()), nil | ||
| } |
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