fprintf the contents of a vector

Hello,

As the title suggests, I want to display the contents of a vector in a fprintf command. I have read several posts about sprintf function and had no luck.

My current solution is this..... Is there any more efficient way to right it with less lines of codes?

fprintf('My first vector: ')
fprintf('%d ', vector1)
fprintf('\n')

fprintf('My second vector: ')
fprintf('%d ', vector2)
fprintf('\n')

fprintf('My third vector: ')
fprintf('%d ', vector3)
fprintf('\n')

Answer 1

[madhan ravi]

EDITED

But this method is much faster than yours:

g=sprintf('%d ', vector1);
fprintf('Vector1 : %s\n', g)
g=sprintf('%d ', vector2);
fprintf('Vector2 : %s\n', g)
g=sprintf('%d ', vector3);
fprintf('Vector3 : %s\n', g)

Ran a loop to check the speed:

tic
for i = 1:100000
    vector1 =1:10;
g=sprintf('%d ', vector1);
fprintf('Vector1 : %s\n', g)
end
toc
Elapsed time is 10.538184 seconds.

tic
for i = 1:100000
    vector1 =1:10;
fprintf('Vector1 : ')
fprintf('%d ', vector1)
fprintf('\n')
end
toc
Elapsed time is 15.363047 seconds.

[Stephen23]

You should show timing results for this, using a few thousand iterations and timeit.

[madhan ravi]

Edited answer seems to be faster though

[Image Analyst]

On my computer, my code below takes

Elapsed time is 0.000407 seconds.

so speed doesn't seem to be an issue worth worrying about.

[madhan ravi]

True sir Image Analyst :)

Answer 2

[Walter Roberson]

Fewer lines of code but not necessarily any more efficient in execution:

fprintf( ['My first vector: ', repmat('%d ', 1, numel(vector1)), '\n'], vector1);

Answer 3

[Image Analyst]

You could get rid of two of the fprintf's:

fprintf('My first vector: ')
fprintf('%d ', vector1)
fprintf('\nMy second vector: ')
fprintf('%d ', vector2)
fprintf('\nMy third vector: ')
fprintf('%d ', vector3)
fprintf('\n')