how can i compute probabalies in haffmaneco
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Yusuf lamah
on 7 Feb 2020
Commented: Walter Roberson
on 10 Feb 2020
how i can i compute probabalties to compress all letters small capital and numbers
3 Comments
Accepted Answer
Walter Roberson
on 8 Feb 2020
[unique_symbols, ~, bin_number] = unique(YourText(:));
symbol_counts = accumarray(bin_number, 1);
symbol_probs = symbol_counts ./ numel(YourText);
Alternately,
sparse_count = sparse(1, double(YourText(:)), 1);
[~, unique_symbols, symbol_counts] = find(sparse_count);
unique_symbols = char(unique_symbols.');
symbol_probs = symbol_counts.' ./ numel(YourText);
In both cases, after the code, unique_symbols will be a column vector of characters that exist in the text, and symbol_probs will be the corresponding probability.
The sparse() version has a minor flaw that it will fail if any characters in the text are binary 0.
More Answers (3)
Yusuf lamah
on 8 Feb 2020
2 Comments
Walter Roberson
on 10 Feb 2020
Are you certain that this remark about needing to know how to compute the probabilities is the answer that you needed to your question? You Accepted it ?
Yusuf lamah
on 10 Feb 2020
1 Comment
Walter Roberson
on 10 Feb 2020
That is not a continuation of this question.
You should first use Google Scholar to research the topic.
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