从单元格数组中提取标题？

Question

如何从单元格数组中提取标题？  例如：

for ii=1: nc
       figure( h(ii) )
            subplot( r,c,n(j) )

        bar(B,FF) %<== istogramma

        title('Istogramma Elemento',txt(1,2)); <==Istogramma Elemento : As
end



 I should write a routine in which they are created 4 figures. 
 within each figure are put 4 histograms. For each histogram changes the title.

矩阵的正常大小是31x15

类型

      1                2               3              4

'N° sul terreno'    'As ppm'    'Be ppm'    'Cd ppm'
'C26'              ''              ''               ''
'C23'            ''            ''               ''
'C19'            ''            ''               ''
'C11'            ''            ''               ''
'C27'            ''            ''               '' 
'C24'            ''            ''               ''
'C21'            ''            ''               ''