Import xy files to veusz pdf#
I have no idea if None is part of the standard csv specifications, but I also don't know if NaN is part of the specifications either. Veusz is a 2D and 3D scientific plotting package, designed to create publication-ready PDF and SVG output. Since you asked: The None value comes from a Python program marking values where no input data was supplied. With ‘Veusz’ you can either start from scratch or if you have saved data then you can import those from CSV or other file formats into the main window and can customized the X/Y axis, add other data (images, key, labels, page, grid etc), and mathematical functions, Undo/Redo, Zoom in/out, use built in ‘operations’ for editing the. Feasible, but some information is lost, because None simply states that there is no value available whereas NaN says that something went wrong during the calculations. It would require replacing None values with ' NaN' in the output routine. Your workaround of using NaN instead of None works.
If there are headers in the file, you have to use the CSV tab which does not handle None at all. It is possible to load data files containing None in the Standard tab but it shows some errors. Add setting to ignore NaN values in point plotter, rather than breaking lines. Add setting to specify minor ticks in axis. It looks to me, that Veusz cannot handle None values like Python does, which is a bit surprising to me, because it is written in Python. Veusz 3.3.99 (beta release) Changes in 3.4: Font styles can be chosen. The column is marked as text if None is in the first row.The column is split into two if None is in the middle of the column.It does not work with None in the first data row.The CSV import works well with NaN in the first data row.
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