PREFERENCES...
, This window lets you select your preferences for program appearance and functions. Chose one of four tabbed categories: Appearance, Sounds, Fonts,File Handling, and Operations.
Smoothing and de-spiking: Sets the defaults for smoothing and interactive spike removal.
Autorepeat: You can set this option to automatically repeat an analysis after a smoothing or de-spiking operation.
Gas exchange: Sets several options for gas exchange calculations. Since many files require lag correction, smoothing, or baseline correction before computing gas exchange, you can set these operations to work automatically when gas exchange is selected. You can also choose defaults to show conversion equations, place results in a new channel, and where to obtain flowrate information (from a file or a fixed value).
Distribution histograms: Several analysis operations have a button that shows a small frequency histogram of data in the current channel. You can select whether to produce a new window for each histogram plot, and whether these windows are closed when you exit the analysis routine.
Waveform triggers: When using the cursor to select trigger values in the ‘Waveform analysis’ routine, display of the trigger values is optional. If they are shown, an extra click is needed to dismiss the display.
To avoid having to re-set your preferences at every launch, click the ‘Save Current Preferences’ button to store your current settings (including screen colors, current values of FiO2, FiCO2, and RQ, etc.) in a file called ‘LAprefs’. When launched, LabAnalyst looks for this file and reads the preferred settings from it.
Caution: You’ll get unexpected results if you use an ‘LAprefs’ file made with a Power-PC Mac on an Intel Mac, or vice versa. This is because numeric data – such as in the preferences file -- are stored in two formats: ‘big-Endian’ and ‘little-Endian’. Endian-ness is a property of the CPU. Power-PC processors are big-Endian; Intel processors are little-Endian. If you record your preferences on a PPC Mac and then read them on an Intel Mac (or vice versa), you'll get unpredictable results, manifested most obviously as weird screen colors.