SunScan User Manual v 1.05
More Psion and file handling notes
••••
39
Data file layouts and data groups
If you want to get a good idea of how the data files will look, you can run the PC
SunData program in the emulator mode. The general presentation of the results on
screen will be similar to that in the eventual data file.
The one major exception to this is in the
All
mode when the 64 individual
photodiode readings are listed. On the PC screen they are shown as 4 rows of 16
values, whereas in the
.CSV
data files they occupy 64 adjacent columns (from handle
to tip of the probe) to the right of the notes field.
A single data file can contain a mixture of layouts. The column headings will be
different for different combinations of equipment (BFS or not) and measurement
(LAI or PAR or All) that you have chosen. Each time there is a change, the headings
and titles will be revised to start a new group and give you a complete "audit trail"
for your measurements. Each group contains readings with exactly the same settings.
When a new group is started, you can create a group title for it from
Menu,
Settings, Titles, Enter
. The group title is automatically cleared when a new group is
formed.
Group numbering
Data groups are numbered sequentially, starting from group 1 when the data file is
created. You can't edit the group number (in the way that you can edit Plot and
Sample numbers), but you can give it a title.
The group number is incremented automatically whenever you re-start the SunData
program after exiting, or when you change a critical setting, that is:
•
any parameter in the
Settings
menu
•
any data or configuration file change.
