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The File Menu
The File menu provides commands that let you work with files in a variety
of ways. You can open existing data files from the CO2, CH4, CO, H2 data
base, or import any type of data from a file containing dates and
concentrations. Various data sets, calculated from the results of the
curve fits, can be exported to a text file for further manipulation or
viewing. The current graph can be sent to a hard copy device, or to a file.
The options in this menu are:
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New
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Erases all data and results from the program, allowing you to start with a
new data set. When you choose this command, the drawing area is cleared.
Parameter values for the function and filter are not changed. This
command is not strictly necessary before using the 'Open' or 'Import' file
options, since these commands reset data also.
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Open...
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Opens an existing data file by specifying the species,
data type and time period to use.
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Import...
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Reads a data file by specifying the filename and format type.
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Export...
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Exports various data sets based on the results of the
curve fitting.
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Print...
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Send postcript print of current graph to specified printer or file.
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Exit
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Quits ccgvu.
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The Edit Menu
The Edit menu contains options for editing function and filter
parameters, and for changing the configuration of the graphs.
The options in this menu are:
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Parameters
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Modify the parameters of the function fit and for
the digital filtering of the residuals from the
function fit.
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Graph Options...
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Modify some options for the currently selected graph
in the main window.
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Axis Options...
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Modify axis options for the currently selected graph
in the main window.
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Graph Legend...
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Modify legend options for the currently selected graph
in the main window.
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Graph Title...
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Modify the title for the currently selected graph
in the main window.
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Grid Options...
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Modify the grid for the currently selected graph
in the main window.
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The View Menu
The View menu lets you display the different toolbars in the main window, and allows you to view a dialog containing statistics from the curve fits.
The options in this menu are:
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Toolbars
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The Toolbar menu lets you select which toolbars are to be displayed
in the main window. The toolbars are:
- File Toolbar - This toolbar shows icon buttons for the Open, Export and Print menu options.
- Zoom Toolbar - This toolbar shows icon buttons allowing the user to zoom in and out of the graph, and to pan the graph.
- Grid Toolbar - This toolbar allows the user to modify the grid configuration of the graph. This contains the same options as the Grid Options...menu option.
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Zoom
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This menu option provides the same commands that are in the zoom toolbar, allowing the user to zoom in or out and to pan the current graph.
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Statistics
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Open up a dialog which showing statistics and results from the curve fit. This dialog has several tabs which show:
- Filter Statistics
Shows the parameters of the function fit, and the variances
of the parameters. Also shows the variances of each of the
digital filters.
- Annual Cycle
Shows the values of the peak to peak amplitude of the seasonal
cycle for each year, the dates of the maximum and minimum,
and the dates when the detrended cycle crosses the trend line.
- Monthly Means (Table)
Computed monthly averages from the smoothed data curve.
These means are computed by averaging the values from the smooth
curve at each sampleinterval data point within that month.
Data is displayed as table, 1 year per line.
- Monthly Means (Column)
Computed monthly averages from the smoothed data curve.
These means are computed by averaging the values from the smooth
curve at each sampleinterval data point within that month.
Data is displayed as year month value columns, 1 line per value.
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The Help Menu
The Help menu lets you display the help dialog, and to show information about the programs.
The options in this menu are:
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Help Contents.
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Contents of the help documentation.
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About...
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Show the version and contact information for ccgvu.
