Method TableHeaders

tensor/table/io.go:529–569

TableHeaders generates special header strings from the table with full information about type and tensor cell dimensionality.

()

// TableHeaders generates special header strings from the table
// with full information about type and tensor cell dimensionality.
func (dt *Table) TableHeaders() []string {
	hdrs := []string{}
	for i := range dt.Columns {
		tsr := dt.Columns[i]
		nm := dt.ColumnNames[i]
		nm = string([]byte{TableHeaderChar(tsr.DataType())}) + nm
		if tsr.NumDims() == 1 {
			hdrs = append(hdrs, nm)
		} else {
			csh := tensor.NewShape(tsr.Shape().Sizes[1:]) // cell shape
			tc := csh.Len()
			nd := csh.NumDims()
			fnm := nm + fmt.Sprintf("[%v:", nd)
			dn := fmt.Sprintf("<%v:", nd)
			ffnm := fnm
			for di := 0; di < nd; di++ {
				ffnm += "0"
				dn += fmt.Sprintf("%v", csh.DimSize(di))
				if di < nd-1 {
					ffnm += ","
					dn += ","
				}
			}
			ffnm += "]" + dn + ">"
			hdrs = append(hdrs, ffnm)
			for ti := 1; ti < tc; ti++ {
				idx := csh.Index(ti)
				ffnm := fnm
				for di := 0; di < nd; di++ {
					ffnm += fmt.Sprintf("%v", idx[di])
					if di < nd-1 {
						ffnm += ","
					}
				}
				ffnm += "]"
				hdrs = append(hdrs, ffnm)
			}
		}
	}
	return hdrs
}