got error Undefined function 'mpower' for input arguments of type 'table'.

I have this code, i had run using dummy data run smoothly. However has error in real data.

 for c1=i:loop_col_utk_data
        j=1
            for c2=j:noofrow_centroid %run no of row
            noofrow_centroid
            hasiltambah=0
                while j<=noofrow_centroid %counter the row, freez the col
                nilai1=centroid(j,i)%ambildata
                nilai2=centroid(j,noofcol_centroid_innerloop)%ambil centroid
                hasil_atas=nilai1*(nilai2^2)
                hasiltambah_atas=hasiltambah_atas+(nilai1*(nilai2^2))
                hasil_bawah=nilai2^2
                hasiltambah_bawah=hasiltambah_bawah+(nilai2^2)
                valueMean(j,k) = hasil_bawah
                j=j+1                  
                end
            end

something wrong of ^2, please explain to me what is going wrong and how i can fix this?

Undefined function 'mpower' for input arguments of type 'table'.

Error in kirapercluster (line 23)
                hasil_atas=nilai1*(nilai2^2)

Answer 1

[Cris LaPierre]

You must be passing in a table data type, but mpower only accepts array. See this page on how to access data in a table. Use one of the options that returns an array.

Here, it appears that centroid is a table. When you use parentheses with a table, the result is also a table. Use curly braces instead to create nilai1 and nilai2.

nilai1=centroid{j,i}%ambildata
nilai2=centroid{j,noofcol_centroid_innerloop}%ambil centroid

[Khairul nur]

still something wrong as below error:

Undefined function 'mtimes' for input arguments of type 'cell'.

Error in kirapercluster (line 23)
                hasil_atas=nilai1*(nilai2^2) %has error in ^ when using real data

edited code

 for c1=i:loop_col_utk_data
        j=1
            for c2=j:noofrow_centroid %run no of row
            noofrow_centroid
            hasiltambah=0
                while j<=noofrow_centroid %counter the row, freez the col
                nilai1=centroid{j,i}%ambildata
                nilai2=centroid{j,noofcol_centroid_innerloop}%ambil centroid
                hasil_atas=nilai1*(nilai2^2) 
                hasiltambah_atas=hasiltambah_atas+(nilai1.*(nilai2^2))
                hasil_bawah=nilai2^2
                hasiltambah_bawah=hasiltambah_bawah+(nilai2^2)
                valueMean(j,k) = hasil_bawah
                j=j+1                  
                end
            end

[Cris LaPierre]

How do you create centroid? It is apparently a table of cells.

The good news is you have gotten past the first problem successfully.