The Textual Work of August Walla, mentally disabled artist

[Koen G]

If I read the graphs correctly, I would say they are similar in the sense that they both deviate from the standard. But they do so in different ways. Wallah's amount of reduplication makes Voynichese look normal. And Voynichese's amount of quasi-reduplication makes Wallah look normal. They stretch different axes.

Although if you were to add both values, they would probably both deviate in similar ways. But then we'd know that different phenomena underlie the similar values.