m = {{6.22926, 6.23254, 6.23128, 0, 6.23453, 6.22548, 6.22938, 6.23443, 0}, {6.22926, 6.23254, 6.23128, , 6.23453, 6.22548, 6.22938, 6.23443,}}
m = {{6.22926, 6.23254, 6.23128, 0, 6.23453, 6.22548, 6.22938,
6.23443, 0}, {6.22926, 6.23254, 6.23128, , 6.23453, 6.22548,
6.22938, 6.23443,}}
Select[m, MatrixQ[{#}, NumericQ] &]
Select[m, MatrixQ[{#}, NumericQ] &]
{{6.22926, 6.23254, 6.23128, 0, 6.23453, 6.22548, 6.22938, 6.23443, 0}}
more alternatives for speed comparisons.