wxmaxima: plotting a discrete data - can I call the data from an exterior file?

Question

I have a data ([x1,y1],....,[xn,yn]) where $n$ is large, around 700.

I want to plot these data in wxmaxima.

The question is: can I store these data in an exterior .txt or .wxmx file and call it from within the code. How achieve this?

Thanks a lot

Answer 1

If the data are coming from some external source, the function read_nested_list can read the data as a list of lists of 2 elements [[x1, y1], [x2, y2], ...]. There are other functions for reading from a file -- ?? read will find the documentation for them.

If the data are generated in Maxima, you can save them to a plain text file via write_data and then read them with read_nested_list or another read function. Another option is to save them via save("myfile.lisp", mydata) which saves mydata as Lisp expressions. Then you can say load("myfile.lisp") to restore mydata in another session.