transform matrices into a single matrix?

3 次查看(过去 30 天)
how I can transform matrices into a single matrix? I have 20 - 6x6 matrices, and I need to create 1 matrix for cluster analysis. Thanks!
  5 个评论
luca buonocore
luca buonocore 2016-10-6
I need to do a hierchical clustering on 20 values, but each values is a 6x6 matrix, so in the end I must clustering returning all 20 values. How I can do that?
KSSV
KSSV 2016-10-6
Whats is the criteria for hierchical clustering..

请先登录,再进行评论。

采纳的回答

Massimo Zanetti
Massimo Zanetti 2016-10-6
编辑:Massimo Zanetti 2016-10-6
You need to assign each variable to only one row of all_data matrix.
A= [ 1 2 3; 4 5 6; 7 8 9];
B= [10 11 12; 13 14 15; 16 17 18];
C= [19 20 21;22 23 24; 25 26 27];
D= [28 29 30; 31 32 33; 34 35 36];
E= [37 38 39; 40 41 42; 43 44 45];
F= [46 47 48; 49 0 51; 52 53 54];
all_data = [A(:)';B(:)';C(:)';D(:)';E(:)';F(:)']
Y= pdist(all_data);
Z = linkage(Y,'ward');
H = dendrogram(Z,'Orientation','left','ColorThreshold','default');
set(H,'LineWidth',1)

更多回答(1 个)

elias GR
elias GR 2016-10-6
Make a 3D matrix. If your 6x6 matrices are in the variables A1,A2,...,A20, then:
A=zeros(6,6,20);
A(:,:,1)=A1;
A(:,:,2)=A2;
...
A(:,:,20)=A20;
At the end all the matrices are inside 1 matrix as you wished, A.
  3 个评论
elias GR
elias GR 2016-10-6
Give us a specific numerical example of what you need
luca buonocore
luca buonocore 2016-10-6
I have 3 matrices:
A= [ 1 2 3; 4 5 6; 7 8 9];
B= [10 11 12; 13 14 15; 16 17 18];
C= [19 20 21;22 23 24; 25 26 27];
I need to do hierarchical clustering on this variables, and i tried this:
all_data = [A;B;C];
Where (A,B,C) are variables
Y= pdist(all_data)
Z = linkage(Y,'ward');
H = dendrogram(Z,'Orientation','left','ColorThreshold','default');
set(H,'LineWidth',1)
but MATLAB give me more than 3 values, but I need 3 values back, and no more...
How I can do this?

请先登录,再进行评论。

类别

Help CenterFile Exchange 中查找有关 Cluster Analysis and Anomaly Detection 的更多信息

Community Treasure Hunt

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

Start Hunting!

Translated by