Applications of Customized Strings: Labels, Prompts, Arguments to Functions:
The one of very useful application of this is to involve numbers in strings that are used to plot titles and axis labels. For illustration, suppose that a file 'expnoanddata.dat' stores an experiment number, trailed by the experiment data. In this situation the experiment number is 123, and the rest of the file contains the real data.
123 4.4 5.6 2.5 7.2 4.6 5.3
The script below would load this data and plot it with a title which includes the experiment number.