I think the “read_from_file” example macro in ROOT Primer -> File I/O and Parallel Analysis -> Storing ROOT Objects will produce an empty canvas.
The goal of the example was not producing a plot but reading from file but thanks for the remark.
I think the “read_from_file” example macro in ROOT Primer -> File I/O and Parallel Analysis -> Storing ROOT Objects will produce an empty canvas.
The goal of the example was not producing a plot but reading from file but thanks for the remark.