Using LabPlot

Command Line Options

Specify a File
When starting LabPlot from the command prompt, you can supply the name of a project file:
LabPlot file.lml

Other Command Line Options
The following command line help options are available
LabPlot --help 	This lists the most basic options available at the command line.
LabPlot --help-qt 	This lists the options available for changing the way LabPlot interacts with .
LabPlot --help-kde 	This lists the options available for changing the way LabPlot interacts with .
LabPlot --help-all 	This lists all of the command line options.
LabPlot --no-splash 	do not show the splash screen
LabPlot --author 	Lists LabPlot's author in the terminal window
LabPlot --version 	Lists version information for , , and LabPlot. Also available through LabPlot -v

The Spreadsheet
The spreadsheet is the main part of LabPlot when working with data. For controlling and converting data the spreadsheet contains a customizable table. Every column of the table has a certain label and can be assigned a format (like double or datetime format). Every spreadsheet has notes for adding additional informations.
You can import data via the import dialog. Any spreadsheet function can be reached via the context menu (right click). You can cut, copy and paste between spreadsheets, fill, normalize and convert data and finally make plots out of your data. Of course you can also export the data in the spreadsheet.
Since version 1.4.1 you can mask certain data points in the spreadsheet which are excluded from plotting. The masking of datapoints can be later influenced in the graph list dialog.
With the "set column value" dialog Labplot allows you to apply versatile operations on the column data. Of course you can also use data from other columns by using "col(column name)" when manipulating the data.

The Worksheet
The worksheet contains all the plots and drawing objects. You can customize the worksheet in the worksheet dialog.
The worksheet can contains multiple plots with different characteristics. To arrange or overlay plots in a worksheet use the "arrange plots" or "overlay plots" menu items. These dialogs will automatically align the different plots according your selection.
An often needed feature is having an independent y axis. This can be easily done by creating a second plot and overlay it on the first plot.

Drag and Drop
LabPlot supports the Drag and Drop protocol of and . This means that you can open a project by dragging their symbols onto the LabPlot window. Project files should have the extension .lml.

Positioning with the Mouse
LabPlotsupports dragging of the axes, title, legend and axes label with the mouse.
To move an item, its area has to be clicked with the When the mouse is moved with the pressed, the plot is continously updated to display the new position. After releasing of the mouse button the item is dropped there.

Status Bar
The horizontal and vertical positions of the mouse pointer in the plot area are displayed in data units on the left side of the status bar at the bottom of the LabPlot window.

Side Tool Bar
From the side tool bar many functions can be reached easy. You can select to zoom, move or scale a plot here. Also some more enhanced functions like data mode (to inspect single data points) or masking of data points can be selected here too. For more information take a look here.