how can i change Iris dataset to haberman dataset?

i am new in neural network and i have this code for classification and i try to change the dataset to haberman which is

3x306 input and 2x306 output

but i cannot understand this

load iris.txt

x=sortrows(iris,2);

H2=x(1:150,1);

H3=x(1:150,2);

H4=x(1:150,3);

H5=x(1:150,4);

T=x(1:150,5);

H2=H2';

[xf,PS] = mapminmax(H2);

I2(:,1)=xf;

H3=H3';

[xf,PS2] = mapminmax(H3);

I2(:,2)=xf;

H4=H4';

[xf,PS3] = mapminmax(H4);

I2(:,3)=xf;

H5=H5';

[xf,PS4] = mapminmax(H5);

I2(:,4)=xf;

Thelp=T;

T=T';

[yf,PS5]= mapminmax(T);

T=yf;

T=T';

and what are used for

any help please?