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File metadata and controls

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ADAMS

Simple, plain-text based file format with a default file extension of .spec.

Spectral data

The spectral data is stored in two, comma-separated columns, e.g.:

waveno,amplitude
600.0,1.61972
602.0,1.61423
604.0,1.61561
606.0,1.62065

Meta-data

Additionally, meta-data can be placed at the start of the file. The format is that of Java properties, each line prefixed with # . In order to specify the data type of values, additional properties with the name suffix of \tDataType are added. The available options for the data type are:

  • B - boolean
  • N - number
  • S - string
  • U - unknown

Here is an example:

# #Thu Jun 12 16:22:24 NZST 2025
# Format=MIR
# Format\tDataType=S
# Parent\ ID=3
# Sample\ ID=03bbd570dfd399bfd866ebcdf860de39
# Sample\ ID\tDataType=S
# Sample\ Type=soil
# Sample\ Type\tDataType=S
# al.ext_usda.a1056_mg.kg=1020.0
# al.ext_usda.a1056_mg.kg\tDataType=N
waveno,amplitude
600.0,1.61972
602.0,1.61423
604.0,1.61561
606.0,1.62065

Multiple spectra

The .spec format also supports storing multiple spectra. In such a case, the spectra a separated by a line of ---.