Select ‘Accept Changes’ after making a change to general preferences. Select ‘Cancel’ to abort change. Select Set Defaults for default general preferences.
Initial EOD directory: Enter location of directory that browser will open with Open
command.Perform Centering Function when Graph is Loaded: Allows Automatic Centering when selected. See Center Waveform for more details.
Find Peaks Automatically: When ON: Phases are nominated and Peak Amplitudes marked using the Automatic Phase/Peak Selection procedure. For Manual Phase/Peak Selection switch this function OFF and follow instructions on screen.
Do not use Zero Crossings for Durations: Used to Analyze Waveform Shape. When ON: the beginning and end of each phase are taken (for measurement purposes) at the Duration Cut-off % specified in Set Constants. When OFF: the beginning or end of phases flanked by a Zero Crossover is taken at the zero crossover itself. The Start and End of a waveform (beginning of first and end of last phase) are always taken at the Duration Cut-off %, even if Do not use Zero Crossings for Durations is OFF.
Remove Zero Offset: When ON: files with a Baseline that is Offset from the Zero Line are opened so that the first value in the Data Array corresponds to zero. This is relevant to PC99 .prn files (where baseline of waveforms is offset TO 1.06V) and EOD recordings where the baseline is offset from zero (common in recordings undertaken with DC Coupled Amplification). When OFF: view file without correction of the baseline. This option should be set ON under most circumstances.
Restore Offset on Save: Relevant to files where Baseline is Offset from zero line (e.g. PC99 files) and only active when Remove Zero Offset is ON. When On: files are saved (using Save As only) with baseline restored to original offset. When OFF: baseline is not restored to original offset. This option should be set ON under most circumstances.
Zero Baseline upon Recentering: used in Manual Recentering. When ON: all points before and after selected beginning and end of EOD waveform are converted to zero and all points inside are corrected to a new zero line. When switched OFF: data points within the selected sequence are corrected to a new zero line but data points outside sequence are not converted to zeros.
Duration Cut-off % Calculated as % of: determines whether % duration cut-off is measured as a percentage of:
i. % of Each Peak: Amplitude of each individual phase.
ii. % of P1:
P1 amplitude.
iii. % of P1 + P2: P1
+ P2 Amplitude.
iv. % Max-to-Min: Peak-to-Peak
Amplitude.
Select ‘Accept Changes’ after making a change to constants. Select ‘Cancel’ to abort change. Select Set Defaults for default constants.
Scale Factor: Specify Peak-to-Peak Amplitude of EOD. All EODs will be scaled to this arbitrary value.
Peak Search Time: Programming constant. Maintain default setting.
Minimum Peak %: Used to establish whether a Phase is a Valid Phase. Durations and Areas of valid phases only are computed for data output in Save Peak Info and in the Fields to the bottom right of the Waveform Interface. If the peak amplitude of a phase exceeds the Minimum Peak % threshold, the phase is considered valid. “Minimum-Peak %” is computed as a % of Peak-to-Peak Amplitude. Valid phases are marked on the EOD plot with black Peaks. Invalid phases are not assigned Peak markers. See Analyze Waveform Shape.
Duration Cut-off %: Used to determine the amplitude value defining the position of: 1, the beginnings and ends of ALL phases of the EODs (when Do not use Zero Crossings for Durations is ON), or; 2, the Start and End of an EOD (beginning of first phase and end of last phase). Duration cut-off % is defined as a % of either of four options (see Duration Cut-off % Calculated as % of). See Analyze Waveform Shape for further details.
Least Significant Digit: Programming constant. Maintain default setting.
Select ‘Accept Changes’ after making a change to colors. Select
‘Cancel’ to abort change. Select Set Defaults for default colors.
Select the appearance of: Axes, Grid, Points, Active
Cursor, Selector
(Reference Cursor), Crosshair, Integral,
Second Cursor (Derivative
Cursor); Background (of Waveform Interface).
Click on color bars to enter palette and select from Swatches, HSB or RGB menus.