plotting lines from data in a 2D matrix

I have a 2D matrix with values as shown in the diagram below. How can I plot two or more lines connecting points of colums with only numbers greater than a threshold?

Regards,,,

Answer 1

[KALYAN ACHARJYA]

mat_data=randi(10,[7,6]); % Or any matrix data, any sizes
[r c]=size(mat_data);
iter=1;
plot_data=cell(1,2);
data1=[];
while iter<=2   
fprintf('Enter the row Position for %d initial (equal or lesss than %d):',iter,c);
data_value=input('');
data1=mat_data(data_value,1);
for j=2:c
  col_data=max(mat_data(data_value-1:data_value+1,j));
  data1(j)=col_data;
end
plot_data{iter}=data1; 
iter=iter+1;
end
plot(plot_data{1},plot_data{2});