Veris-technologies NIRS Spectrophotometer - QUICK REFERENCE CARD Manuel d'utilisateur télécharger pdf (Page 4)

17. Press #5 to initiate the clustering program--it will ask if

the settings are correct. The settings are the number of

clusters or sample locations, and the number of PC’s to

use for clustering. By default there will be 3 PC’s used and

15 locations to sample. If more sample locations are

desired, then this can be changed at this time. Up to 10

PC’s can be chosen, however 95% of the data is contained

within the first 3 PC’s. If these settings are acceptable,

then select YES or, to update the settings press NO. If NO

was selected, update the settings and press continue to

begin clustering the data. Once the data have been

clustered, the program status will say done and the

complete light will be lit. Press close window or F12 to

return to the main interface. EC data file is in folder—file is

named ec.txt

18. Press #6 to conduct soil sampling. Navigate to the GPS

coordinates of desired sample locations from previous step,

and press ENTER to record actual sample locations.

19. Once all

the desired

sampled

locations have

been stored,

press close

window or F12

to return to the

main interface.

20. Press #7 to interpolate/average spectra near sampled

locations. Outputs a file named spectra@locations.txt to

the working directory. This file contains the spectra and

auxiliary data for each sampled GPS location. If settings

other than defaults are desired, see Operations Manual for

detailed information. After the interpolation is done the

complete light will be green.

Press close

window or

F12 to return

to the main

interface.

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Veris-technologies NIRS Spectrophotometer - QUICK REFERENCE CARD Manuel d'utilisateur Page 4