Troubleshooting guide

Lab Exercise: Commands
Registers, Objects, and Tables
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Objects
Objects are the data you work with such as chromatograms or spectra. Each
object has a header which contains a description of the object. For instance, if the
object is a chromatogram, the header contains the injection time and date, the
operator name and vial number.
Objects will also have a data block. The data block is the actual x and y data
points that describe the chromatogram or spectrum.
Objects may also comprise tables. Tables are made of a series of rows and
columns which typically hold information about the object. An example of a
table would be the IntResults table created after chromatograms are integrated.
The rows indicate the number of integrated chromatographic peaks and the
column names include retention time, area, peak height, and etc…. Tables also
have an associated table header. The IntResults table header will tell you how
many rows are in the table, thus how many integrated peaks.
Use the following commands to load objects into registers, access the information
from the object header, access data points from the data block, and retrieve
information from tables. In the following example, you will load a
chromatographic signal into ChromReg, integrate the chromatogram, then access
information from the object header, data block and IntResults table.
Loading a chromatogram into a Register as an Object
1) Load a data file into memory:
File c:\chem32\#\data\demo\demodad.d <enter>
where # is your instrument number.
2) Load the chromatographic signals into the ChromReg register by typing:
LoadSignal ,,,ChromReg <enter>
3) To view the first of three chromatograms loaded type:
Draw 2,ChromReg[1] <enter>