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1.7. Generating the new sample-list

Now that the issues of heterogeneous file formats and other conventions (including EDF record size, channel and annotation properties) have been largely been resolved, we can now move on to look in more detail at the actual information content of the dataset.

Specifically, from following the previous steps, we've populated the work/harm1 folder with an EDF and a single .annot file for each individual:

ls work/harm1/

F01.annot   F06.annot   M01.annot   M06.annot
F01.edf     F06.edf     M01.edf     M06.edf
F02.annot   F07.annot   M02.annot   M07.annot
F02.edf     F07.edf     M02.edf     M07.edf
F03.annot   F08.annot   M03.annot   M08.annot
F03.edf     F08.edf     M03.edf     M08.edf
F04.annot   F09.annot   M04.annot   M09.annot
F04.edf     F09.edf     M04.edf     M09.edf
F05.annot   F10.annot   M05.annot   M10.annot
F05.edf     F10.edf     M05.edf     M10.edf

We'll --build a sample list for these harmonized files:

luna --build work/harm1 > harm1.lst

wrote 20 EDFs to the sample list
  20 of which had 1 linked annotation files

We can confirm that all steps proceeded as expected, e.g. via the --validate command again: 

luna --validate --options slist=harm1.lst

  validating files in sample list harm1.lst

  all good, no problems detected in 20 observations scanned

Alternatively, the DESC command is useful to check a new project (and will report any issues with invalid files by stopping with an error message):

luna harm1.lst -s DESC
e.g. for the first individual: 
___________________________________________________________________
Processing: F01 [ #1 ]
 duration 03.00.30, 10830s | time 22.00.00 - 04.58.00 | date 01.01.85

 signals: 58 (of 58) selected in an EDF+D file
  Fp1 | Fp2 | AF3 | AF4 | F7 | F5 | F3 | F1
  F2 | F4 | F6 | F8 | FT7 | FC5 | FC3 | FC1
  FC2 | FC4 | FC6 | FT8 | T7 | C5 | C3 | C1
  C2 | C4 | C6 | T8 | TP7 | CP5 | CP3 | CP1
  CP2 | CP4 | CP6 | TP8 | P7 | P5 | P3 | P1
  P2 | P4 | P6 | P8 | PO3 | PO4 | O1 | O2
  AFZ | FZ | FCZ | CZ | CPZ | PZ | POz | OZ
  FPZ | EDF Annotations
  extracting 'EDF Annotations' track from EDF+

 annotations:
  Arousal (x86) | N1 (x55) | N2 (x361) | N3 (x148)
  R (x118) | W (x161) | edf_annot (x0)

 variables:
  eeg=Fp1,Fp2,AF... | generic=EDF Annota... | id=F01
 ..................................................................
 CMD #1: DESC
   options: sig=*

EDF filename      : work/harm1/F01.edf
ID                : F01
Header start time : 22.00.00
Last observed time: 04.58.00
Duration          : 03:00:30  10830 sec
Duration (w/ gaps): 06.58.00  25080 sec
# signals         : 57
# EDF annotations : 1
Signals           : Fp1[128] Fp2[128] AF3[128] AF4[128] F7[128] F5[128]
                    F3[128] F1[128] F2[128] F4[128] F6[128] F8[128]
                    FT7[128] FC5[128] FC3[128] FC1[128] FC2[128] FC4[128]
                    FC6[128] FT8[128] T7[128] C5[128] C3[128] C1[128]
                    C2[128] C4[128] C6[128] T8[128] TP7[128] CP5[128]
                    CP3[128] CP1[128] CP2[128] CP4[128] CP6[128] TP8[128]
                    P7[128] P5[128] P3[128] P1[128] P2[128] P4[128]
                    P6[128] P8[128] PO3[128] PO4[128] O1[128] O2[128]
                    AFZ[128] FZ[128] FCZ[128] CZ[128] CPZ[128] PZ[128]
                    POz[128] OZ[128] FPZ[128]


___________________________________________________________________
...processed 1 EDFs, done.
...processed 1 command set(s),  all of which passed
-------------------------------------------------------------------

(Note: an EDF annotation channel is present because all EDF+ files need at least one EDF Annotations channel to hold the time-track.)

We can now use the harm1.lst when embarking on the next phase of QC.