Vertical alignment of input using fprintf

I am using fprintf to present my output vertically.

>> for j = 1 : length( y )
fprintf( '%s%8.2f%8.2f\n',x{j}, y(j),z(j) )
end
Butane 1859.59  371.92
Oxygen 4095.45  767.90
Nitrogen gas13490.4913490.49
Maleic anhydride    0.00 1757.00
Acetic acid    0.00   15.37
Acrylic acid    0.00   18.44
Carbon monoxide    0.00  412.25
Carbon dioxide    0.00  647.74
Water    0.00 1964.93
Total19445.5319446.04

However, they way i want to present the output in this way

Butane           1859.59    371.92
Oxygen           4095.45    767.90
Nitrogen gas    13490.49  13490.49
Maleic anhydride    0.00   1757.00
Acetic acid         0.00     15.37
Acrylic acid        0.00     18.44
Carbon monoxide     0.00    412.25
Carbon dioxide      0.00    647.74
Water               0.00   1964.93
Total           19445.53  19446.04

What is the additional command I haved to added?

Thanks in advance.

Answer 1

[Stephen23]

>> x = {'Butane','Oxygen','Nitrogen gas','Maleic anhydride','Acetic acid','Acrylic acid','Carbon monoxide','Carbon dioxide','Water','Total'};
>> y = [1859.59,4095.45,13490.49,0.00,0.00,0.00,0.00,0.00,0.00,19445.53];
>> z = [371.92,767.90,13490.49,1757.00,15.37,18.44,412.25,647.74,1964.93,19446.04];

In the following examples I provided the fprintf input as a comma-separated list generated from a cell array, of course you can use a loop if you prefer.

Method 1: set the fprintf fieldwidth:

>> c = [x;num2cell(y);num2cell(z)];
>> fprintf('%-20s %8.2f %8.2f\n',c{:})
Butane                1859.59   371.92
Oxygen                4095.45   767.90
Nitrogen gas         13490.49 13490.49
Maleic anhydride         0.00  1757.00
Acetic acid              0.00    15.37
Acrylic acid             0.00    18.44
Carbon monoxide          0.00   412.25
Carbon dioxide           0.00   647.74
Water                    0.00  1964.93
Total                19445.53 19446.04

Method 2: use char to fit all words:

>> c = num2cell(char(x),2).';
>> c(2,:) = num2cell(y);
>> c(3,:) = num2cell(z);
>> fprintf('%s %8.2f %8.2f\n',c{:})
Butane            1859.59   371.92
Oxygen            4095.45   767.90
Nitrogen gas     13490.49 13490.49
Maleic anhydride     0.00  1757.00
Acetic acid          0.00    15.37
Acrylic acid         0.00    18.44
Carbon monoxide      0.00   412.25
Carbon dioxide       0.00   647.74
Water                0.00  1964.93
Total            19445.53 19446.04

Method 3: no fprintf:

>> c = char(x);
>> c(:,end+1) = 32;
>> c = [c,num2str(y(:))];
>> c(:,end+1) = 32;
>> c = [c,num2str(z(:))];
>> c
c =
Butane            1859.59   371.92
Oxygen            4095.45    767.9
Nitrogen gas     13490.49 13490.49
Maleic anhydride        0     1757
Acetic acid             0    15.37
Acrylic acid            0    18.44
Carbon monoxide         0   412.25
Carbon dioxide          0   647.74
Water                   0  1964.93
Total            19445.53 19446.04

[Zhi Wei Ku]

It works! Thank you so much.