how to print a table with hearders all aligned to the center of each column

6 次查看（过去 30 天）
Pierre
Pierre 2025-4-14
回答： Star Strider 2025-4-14
hello,
I am trying to print a table with headers of different lengths and numbers with different precision. all aligned to the center of the column and with a separation line that starts with the first characte of the first header and end with the last character of the last header.
this is the code I have for now:
x =1:5;
y= x.^2;
z = x*20;
table =[x; y; z];
t=strings(3);
t(1)=' x-val1234';
t(2)=' y-val123456';
t(3)=' z-val1234567890';
% pp=strcat(t(1),',',t(2),',',t(3));
pp=strcat(t(1),t(2),t(3),'\n');
fprintf(pp)
fprintf('--------------------------------\n')
fprintf('%8.2f %10.1f %12.2f\n', table)
an this is the output I get
x-val1234 y-val123456 z-val1234567890
--------------------------------
1.00 1.0 20.00
2.00 4.0 40.00
3.00 9.0 60.00
4.00 16.0 80.00
5.00 25.0 100.00
what I would like to get is this:
x-val1234 y-val123456 z-val1234567890
-----------------------------------------------
1.00 1.0 20.00
2.00 4.0 40.00
3.00 9.0 60.00
4.00 16.0 80.00
5.00 25.0 100.00

请先登录，再回答此问题。

回答（2 个）

Mathieu NOE
Mathieu NOE 2025-4-14
see attached a nice formatting piece of code for this job
example code :
data = 1e2.*rand(5,4);
fmt = {'%.3g'};
col_headers = {'a','b','c','d'};
row_headers = {'No.','1','2','3','4','5'};
out = print_table(data,fmt,col_headers,row_headers)
% save to file
filename = 'exp.txt';
fileID = fopen(filename,'w');
fprintf(fileID,out);
fclose(fileID);
Star Strider
Star Strider 2025-4-14
Ran in:
The easiest way is to use a table array.
x =1:5;
y= x.^2;
z = x*20;
xyz_table = table(x(:), y(:), z(:), VariableNames={'x-val1234','y-val123456','z-val1234567890'})
xyz_table = 5x3 table
x-val1234 y-val123456 z-val1234567890 _________ ___________ _______________ 1 1 20 2 4 40 3 9 60 4 16 80 5 25 100
writetable(xyz_table, 'xyz_table.csv')
type('xyz_table.csv')
x-val1234,y-val123456,z-val1234567890 1,1,20 2,4,40 3,9,60 4,16,80 5,25,100
VN = xyz_table.Properties.VariableNames;
fprintf(['\n' repmat('\t%12s',1,3) '\n'], VN{:})
x-val1234 y-val123456 z-val1234567890
fprintf([repmat('\t\t%g',1,3) '\n'], table2array(xyz_table))
1 2 3 4 5 1 4 9 16 25 20 40 60 80 100
Just copy-pasting the table from the Command Window might be easiest, if you want to preserve the formatting.
.

类别

在 Help Center 和 File Exchange 中查找有关 Tables 的更多信息

标签

产品


版本

R2023b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by