odbtest/test/arrow/tensor.go

package main

import (
	"fmt"

	"github.com/apache/arrow/go/arrow/array"
	"github.com/apache/arrow/go/arrow/memory"
	"github.com/apache/arrow/go/arrow/tensor"
)

func main() {
	pool := memory.NewGoAllocator()

	b := array.NewFloat64Builder(pool)
	defer b.Release()

	raw := []float64{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
	b.AppendValues(raw, nil)

	arr := b.NewFloat64Array()
	defer arr.Release()

	f64 := tensor.NewFloat64(arr.Data(), []int64{2, 5}, nil, []string{"x", "y"})
	defer f64.Release()

	for _, i := range [][]int64{
		[]int64{0, 0},
		[]int64{0, 1},
		[]int64{0, 2},
		[]int64{0, 3},
		[]int64{0, 4},
		[]int64{1, 0},
		[]int64{1, 1},
		[]int64{1, 2},
		[]int64{1, 3},
		[]int64{1, 4},
	} {
		fmt.Printf("arr%v = %v\n", i, f64.Value(i))
	}

}