论文信息 - Speaking Stata: MMXI and all That: Handling Roman Numerals within Stata

Speaking Stata: MMXI and all That: Handling Roman Numerals within Stata

The problem of handling Roman numerals in Stata is used to illustrate issues arising in the handling of classification codes in character string form and their numeric equivalents. The solutions include Stata programs and Mata functions for conversion from numeric to string and from string to numeric. Defining acceptable input and trapping and flagging incorrect or unmanageable inputs are key concerns in good practice. Regular expressions are especially valuable for this problem.

Nicholas J. Cox | N. Cox

[1] Ernest Zebrowski,et al. The Universal History of Numbers: From Prehistory to the Invention of the Computer. Georges Ifrah , David Bellos , E. F. Harding , Sophie Wood , Ian Mark , 2001 .

[2] Paul W. Abrahams,et al. UNIX for the impatient (2nd ed.) , 1995 .

[3] Eric S. Raymond,et al. The Art of Unix Programming , 2003 .

[4] Paul W. Abrahams,et al. Unix for the impatient , 1992 .

[5] Nicholas J. Cox,et al. Stata Tip 2: Building with Floors and Ceilings , 2003 .

[6] Florian Cajori,et al. A history of mathematical notations , 1928 .

[7] Brian W. Kernighan,et al. The UNIX™ programming environment , 1979, Softw. Pract. Exp..

[8] Nicholas J. Cox,et al. Speaking Stata: On Numbers and Strings , 2002 .

[9] S. E. Mann,et al. Number Words and Number Symbols: A Cultural History of Numbers. , 1970 .

[10] J. Gullberg. Mathematics: From the Birth of Numbers , 1997 .

[11] Alfred V. Aho,et al. The awk programming language , 1988 .

[12] Karl W. Menninger,et al. Number Words and Number Symbols: A Cultural History of Numbers , 1971 .

[13] Eli Maor,et al. The universal history of numbers : from prehistory to the invention of the computer , 2001 .

[14] Jeffrey E. F. Friedl. Mastering Regular Expressions , 1997 .