This is pTeXk, Version 3.1415926-p3.1.11 (sjis) (Web2C 2010) (format=platex 2010.7.21)  1 SEP 2010 11:16
 restricted \write18 enabled.
 %&-line parsing enabled.
**dataset.tex
(./dataset.tex
pLaTeX2e <2006/11/10>+0 (based on LaTeX2e <2009/09/24> patch level 0)
Babel <v3.8l> and hyphenation patterns for english, usenglishmax, ukenglish, ba
sque, bulgarian, coptic, welsh, czech, slovak, german, ngerman, danish, esperan
to, spanish, catalan, galician, estonian, farsi, finnish, french, irish, greek,
 monogreek, ancientgreek, croatian, hungarian, interlingua, ibycus, bahasa, ice
landic, italian, latin, mongolian, dutch, norsk, polish, portuguese, pinyin, ro
manian, russian, slovenian, samin, uppersorbian, serbian, swedish, turkish, ukr
ainian, dumylang, nohyphenation, loaded.
! Undefined control sequence.
l.1 \chapter
            {Data set}\label{chap:dataset}
? 
! Emergency stop.
l.1 \chapter
            {Data set}\label{chap:dataset}
End of file on the terminal!

 
Here is how much of TeX's memory you used:
 4 strings out of 494457
 42 string characters out of 3173175
 50488 words of memory out of 1500000
 3456 multiletter control sequences out of 15000+200000
 7511 words of font info for 31 fonts, out of 3000000 for 9000
 678 hyphenation exceptions out of 8191
 5i,0n,1p,52b,7s stack positions out of 3000i,500n,5000p,500000b,5000s
No pages of output.