If there is a need for a iofiletype where the first column is frequency, (for example in AC-analysis) then the most consistent way to handle this is to add io type 'freq' with an assumption that the data in the other columns are complex. All the other formats address the problem how the time in the first columns is interpreted.
If there is a need for a iofiletype where the first column is frequency, (for example in AC-analysis) then the most consistent way to handle this is to add io type 'freq' with an assumption that the data in the other columns are complex. All the other formats address the problem how the time in the first columns is interpreted.