What is the difference between locking and saving graphs?
Locking a graph (see above) will preserve the graph as long as you do not close the current module. Saving the graph (see below) allows you to preserve it across analyses (e.g., in different modules) or open it again in a future session. How to save STATISTICA graphs: STATISTICA graphics file format. Graphs and drawings may be saved in the STATISTICA system graphics file format (file name extension *.stg). Use the options Save or Save As… in the File menu. Although other graphics formats are also supported, this format is recommended whenever you intend to use the graph again in the STATISTICA system or link it to other application documents using the Windows OLE conventions. Unlike the other formats (see the next paragraph), the STATISTICA system format stores not only the graphical representation of the picture but also the Graph Data Editor (see below) containing all data which are represented in the graph, all analytic options (fitted equations, ellipses, etc.) and other settings
