fprintf using a for loop

Hello,

I seem to be having trouble figuring out how to make a table using fprintf using a for loop.

I currently have one cell array and 3 row vectors defined as such:

C = {’a’, ’bb’, ’ccc’, ’dddd’, ’eeeee’};

x = [6.715, -12.075, 7.172, 16.302, 4.889];

y = [-134.98869, 303.49235, 72.54042, -6.30549, 71.47429];

z = [14380, 0.00325, -7549, 13700, -0.00017];

My task is to create a table using fprintf that looks exactly like the following:

   x       C          y            C       z
---------------------------------------------------
 6.715    a      -134.98869       a   +1.438E+004
-12.075   bb      303.49235      bb   +3.250E-003
 7.172    ccc      72.54042     ccc   -7.549E+003
 16.302   dddd     -6.30549    dddd   +1.370E+004
 4.889    eeeee    71.47429   eeeee   -1.700E-004

Any help would be appreciated. Thanks.

Answer 1

[Walter Roberson]

Well, after the header lines, when you get to line #K, you would be wanting to emit

x(K), C{K}, y(K), C{K}, z(K)

Everything beyond that is no longer a difficulty with using fprintf() in "for" loop, and is instead a difficulty in using fprintf() to emit numbers in particular formats, occupying particular number of columns, and having particular alignments.

I will give you a hint: experiment with %5s and %-5s formats when you are printing out C{K}.

[Ammar]

Thank you for the input. The %5s and %-5s hints really helped. There is just one more thing that I do not understand. In the for loop, what steps should I take? For instance, should I do:

for i=1:5

x=x(i)

y=y(i)

C=C{i}

z=z(i)

fprintf('%7.3f %5s %9.5f %-5s %5.3e',x(i), C{i}, y(i), C{i}, z(i))

Aside from this, I have tried everything I can think of. I guess its important to know it has only been one month since I started learning MATLAB, so there is a lot I do not know.

Once again, thanks for everything.

[Walter Roberson]

Remove the statements

x=x(i)

y=y(i)

C=C{i}

z=z(i)

as they are going to wipe out the variables you are trying to print out!

The only change I would make to

fprintf('%7.3f %5s %9.5f %-5s %5.3e',x(i), C{i}, y(i), C{i}, z(i))

is

fprintf('%7.3f %5s %9.5f %-5s %5.3e\n',x(i), C{i}, y(i), C{i}, z(i))