[pstricks] Custom tick label and tick interval

[erratic]

Martijn, Herbert - that worked marvelously. Thank you!

Moving on,

Why am I having trouble exporting the document to a PDF (with
pdfetex/pdflatex) when using commands like \rput and \pcline?

----------------------------------------------------------------------------------------------
loading : Context Support Macros / Miscellaneous (2004.10.26)
)
loading : Context Support Macros / PDF (2004.03.26)
) [1
Non-PDF special ignored!
Non-PDF special ignored!
Non-PDF special ignored!{psfonts.map}] (parkinson.toc) [1]
! Undefined control sequence.
<recently read> \c at lor@to at ps

l.58                     \rput
               (16,-0.5){Years}
? pdflatex: Bad file descriptor

Tool completed with exit code 1
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And why does rotated \rput look so awful?
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