LI-COR LI-6400, Руководство пользователя

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Recomputing Data Files
13-2 Using the LI-6400
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Sooner or later, youÕll find that youÕve collected some data and had some-
thing set incorrectly, such as leaf area, and will need to recompute the file.
This chapter describes how to do this.
Reasons to Recompute
¥ To Change Leaf Area
This is the most common reason for recomputing data. However, itÕs not just
leaf area that can be changed, but any of the user entered constants (stomatal
ratio, boundary layer conductance, etc.) can be modified.
¥
To Change WhatÕs Stored
You can select a subset of a data file, such as only three variables, to be out-
put.
¥
To Change WhatÕs Computed
You can add quantities to be computed by changing the Compute List file.
Obviously, the computed quantities should depend only on things that are
available in the original file.
A Step By Step Example
Suppose you have a file named Ò
/user/MyData
Ó that has an incorrect leaf area
(you used 6.0, and it should have been 4.4) and stomatal ratio (you used 0 and
it should have been 0.5). This example shows how to make a new file named
Ò
/user/MyData Corrected Ó with those values corrected.