Add NaN in the first row of a table

I have a table (size 449801x1). I want to add NaN in the first row of the table. How do I do this?

Answer 1

[Aquatris]

Assuming all your entries are numeric, since you want to assign NaN, here is one way;

% create dummy table
Age = [38;43;38;40;49];
Height = [71;69;64;67;64];
Weight = [176;163;131;133;119];
T = table(Age,Height,Weight);
T

T = 5x3 table
    Age    Height    Weight
    ___    ______    ______

    38       71       176  
    43       69       163  
    38       64       131  
    40       67       133  
    49       64       119  

% assign NaN to 1st row
T(1,:) = array2table(NaN(size(T(1,:))));
T

T = 5x3 table
    Age    Height    Weight
    ___    ______    ______

    NaN     NaN       NaN  
     43      69       163  
     38      64       131  
     40      67       133  
     49      64       119  

[Indrani]

Thanks!