[Cryptography] paragraph with expected frequencies
Sidney Markowitz
sidney at sidney.com
Sat Dec 23 16:42:46 EST 2017
It would be better to teach the how statistics provide usefully approximate
results rather than faking a perfect match to some commonly quoted frequency.
Here is one interesting contrast of letter frequencies from a few different
sources, quoted from the multi-language examples at
http://www.bckelk.ukfsn.org/words/etaoin.html
David Copperfield etaoinhsrdlmuwycfgpbvkxjqz
Pride and Prejudice etaoinhsrdlumcywfgbpvkzjxq
Wuthering Heights etaonihsrdlumcyfwgpbvkxjqz
Vanity Fair etaonhsirdlumcwfgypbvkjqxz
Gulliver's Travels etoainshrdlmucfwygpbvkxjqz
Alice in Wonderland etaoihnsrdluwgcymfpbkvqxjz
Inaugural speeches:
Reagan etonarishdlumwcfgpybvkjxzq
Obama etoarnsihdlucwfmgpybvkjqzx
British National Corpus etaoinsrhldcumfpgwybvkxjqz
(90 million words of UK English)
Brown corpus etaoinsrhldcumfpgwybvkxjqz
(one million words of US English)
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