Questions tagged [huffman-tree]
11 questions
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I don't understand how to draw Huffman coding tree
If I'm correct, Huffman Tree is made with two minimum frequencies and keeps going.
For example, letters A,B,C,D,E,F has frequencies of 15, 40, 60, 10, 30, 45 (200 total).
first, D would go left and A on right to make leaf nodes.
second, E goes…
MKG MNK5168
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How is a Huffman compression decoded?
I'm struggling to understand how to decode, say, a text file that has been compressed using Huffman's method. Let's say I'm reading a text file, I get a list of all the characters and the frequency in which they occur, I create a Huffman tree and…
JosephE
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How to count the bits in a Huffman tree
I am looking at the below Huffman tree, the corresponding frequency table and the subtotal table. That table calculates the subtotal bits. I want to know how to count the subtotal bits.
In the first row of the subtotal table, code 0 maps to 15. I…
Cao Dingjie
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How to sort a heterogeneous list of Tree Objects and Tuples
How would I sort a list of tuple and tree objects? I have list of tuples (key: str, value: frequency), and huffman tree objects where the tree has a left, right, symbol and weight attributes, I would like to initially sort the list by the tuple's…
Yusuf Gökçe
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How do a move a dynamically allocated element to another node in C?
I'm creating a huffman tree in C. I store all the characters with their frequencies as a queue_elem element. I put all those elements in a priority queue then take the least frequent elements, allocate a new queue_elem element with its left and…
JosephE
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Traversing two paths of a binary search tree and nulling the one where target isn't found (Java)
public String searchTreeNode(Character target, TreeNode current, String result) {
Character left = current.getLeft().getData().getCharacter();
Character right = current.getRight().getData().getCharacter();
//Both children…
0
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Huffman Encoding: How to find the path?
I have a tree with the most frequent letters at the top of the tree and I am trying to find the path to a node so I can turn a message into binary. In this program if I go left, I add 0 to path and, if I go right, I add 1 to the path until I find…
blurpex
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how to code huffman tree in R programming and how to show 0 and 1 on the branches in R studio
Please guide me on how to code the Huffman tree in R programming and show 0 and 1 on the branches in R studio, given the DNA sequence GATTACA. Please help me as I am new to coding.
sid more
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Inconsistencies when creating Huffman tree
On Wikipedia, the construction of a Huffman tree is described as such:
The simplest construction algorithm uses a priority queue where the node with lowest probability is given highest priority:
Create a leaf node for each symbol and add it to the…
silverfox
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barcode based Text compression
I coding the process in python,
Here the process
text file(input) -> using huffman algo compressed and save the compressed file (.bin) binary file -> generate barcode from compressed (.bin file) -> scan the barcode to get the original text…
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How to store string generated from Huffman tree to a text file
I am trying to implement Huffman Coding in C++ for text file compression. I am able to build huffman tree from the frequencies of each character in the file. When I try to traverse the tree and get huffman codes for different characters, I am…
Falcon
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