How can we create DATASET in MATLAB?

I want to create DATASET for Nuts and Bolts by below code but i gets an error.Can anyone helps me?

 % Create a standard MATLAB dataset from data and labels.

 dat =[ 0.1 0.9 ; 0.3 0.95 ; 0.2 0.7 ];

 lab ={ 'class 1', 'class 2', 'class 3' };

 z =dataset(dat,lab);

 [nlab,lablist] = getNlab(z); % Extract the numeric labels

 [m,k,c]=getsize(z); % Extract number of classes

 for i= 1:c

 T{i}=seldat(z,i);

end;

[hemasai proddutur]

getNlab is showing error

[Walter Roberson]

It looks to me as if possibly getnlab is from http://www.37steps.com/prhtml/prtools.html

Answer 1

[Walter Roberson]

You have two columns and three variable names.

Perhaps the rows in your data are variables. If that is the case then

dataset(dat .', lab)

[Machine Learning Enthusiast]

it gives below error

>> Untitled Error using dataset (line 279) Must have one variable name for each column when creating multiple variables from an array.

Error in Untitled (line 6)

z =dataset(dat .', lab);

[Walter Roberson]

If you are looking for one variable per row then,

z = dataset({dat.',lab{:}});

If you want the columns to be the variables then you have too many column names.

lab2 = lab(1:2);
z = dataset({dat, lab2{:}});