MROWS を指定する場合、NCOLS も指定しなければなりません。 データ型が無効です。最初の引数は double、single、int8、uint8、int16、uint16、int32、uint32、論理値のいずれかでなければなりません。 スパース配列はサポートされていません。 The length of the DCT-I transform must be greater than 1. Use a longer transform length or a different variant of the DCT. The length of the DCT-I transform must be greater than 1 in every dimension. Use a longer transform length or a different variant of the DCT. Transform length must be a nonnegative integer scalar. Unrecognized option; specify the transform type with 'Variant' followed by an integer between 1 and 4. Transform variant must be an integer scalar between 1 and 4. Transform output size must have at least NDIMS elements. Transform output size must be a real integer row vector. Transform output size vector must contain non-negative integers.