Get the probability of a matrices

2 次查看（过去 30 天）
fyza affandi
fyza affandi 2018-12-15
编辑： madhan ravi 2018-12-15
I have a matrix E1
1 1 4 5 1 1 3 1
1 1 2 5 1 1 1 1
3 4 1 3 5 10 5 4
4 2 3 4 5 8 4 1
1 2 12 16 1 1 3 3
1 2 10 14 1 1 1 1
1 1 10 8 2 5 3 15
5 2 1 3 2 21 1 11
I sort the symbols into a table
%calculate the freq%
[a,b]=hist(E1,unique(E1));
out=[b' sum((a),2)];
%Sorting into table%
Table = array2table(out,'VariableNames',{'Symbol','Count'})
%Rearrange table in descending order%
tblB = sortrows(Table,{'Count'},{'descend'})
And the result turns into this
Symbol Count
______ _____
1 25
3 8
2 7
5 7
4 6
10 3
8 2
11 1
12 1
14 1
15 1
16 1
21 1
So my question is how can I get the probabilities of each symbols in vector?
The desired result is as below
mat=[0.3906 0.125 0.1094 0.1094 0.0938 0.0469 0.0313 0.0156 0.0156 0.0156 0.0156 0.0156 0.0156];

请先登录，再回答此问题。

采纳的回答

madhan ravi
madhan ravi 2018-12-15
mat=tblB.Symbol./sum(tblB.Count) %though the pattern is not discernible
  2 个评论
fyza affandi
fyza affandi 2018-12-15
Thank you.
After some corrections , I get the answer.
mat=[];
for matz=1:height(tblB)
mat=[mat,tblB.Count(matz)/sum(tblB.Count)]
end
madhan ravi
madhan ravi 2018-12-15
编辑：madhan ravi 2018-12-15
Anytime :) , if my answer helped you make sure to accept the answer.

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Matrix Indexing 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by