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How to encode alphabets using tables

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sadiqa ilyas
sadiqa ilyas on 1 Sep 2019
Commented: sadiqa ilyas on 3 Sep 2019
Hi I want to encode the word "CONGRATULATIONS" using upper case letters.For this I have the table
A 0
B 1
C 2
D 3 ......and so on.
I dont know how to relate this type of mapping in matlab.
Alphabets={'A';'B';'C';'D';'E';'F';'G';'H';'I';'J';'K';'L';'M';'N';'O';'P';'Q';'R';'S';'T';'U';'V';'W';'X';'Y';'Z';'null space'};
numeric_values=[0;1;2 ;3;4;5;6;7;8;9;10;11;12;13;14;15;16;17;18;19;20;21;22;23;24;25;26];
T1=table(Alphabets,numeric_values);
M={'C';'O';'N';'G';'U';'R';'A';'T';'U';'L';'A';'T';'I';'O';'N';'S'};
T2=table(M);

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Accepted Answer

R.G.
R.G. on 1 Sep 2019
Edited: R.G. on 1 Sep 2019
Hello! Check following code. I used char(65:90) to create A-Z sequence, and Map container to map symbols into codes.
symbols = [num2cell(char(65:90)) 'space'];
codes = 0:26;
dictionary = containers.Map(symbols, codes);
word = num2cell('CONGRATULATIONS');
encoded_word = cell(size(word));
for i = 1:length(word)
encoded_word{i} = dictionary(word{i});
end
display(cell2mat(encoded_word));

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sadiqa ilyas
sadiqa ilyas on 3 Sep 2019
can u plz give more hints or share links about this topic
Walter Roberson
Walter Roberson on 3 Sep 2019
Alphabets={'A';'B';'C';'D';'E';'F';'G';'H';'I';'J';'K';'L';'M';'N';'O';'P';'Q';'R';'S';'T';'U';'V';'W';'X';'Y';'Z';'null space'};
numeric_values=[0;1;2 ;3;4;5;6;7;8;9;10;11;12;13;14;15;16;17;18;19;20;21;22;23;24;25;26];
T1=table(numeric_values, 'rownames', Alphabets);
M={'C';'O';'N';'G';'U';'R';'A';'T';'U';'L';'A';'T';'I';'O';'N';'S'};
T1{M,:}
sadiqa ilyas
sadiqa ilyas on 3 Sep 2019
Thanks. Its really a smart way for mapping.

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