HOW DO I DO THAT IN MATLAB SERIES?

In this series, I am answering questions that students have asked me about MATLAB. Most of the questions relate to a mathematical procedure.

TOPIC
SUMMARY
INTRODUCTION
INPUTS
DISPLAYING INPUTS METHOD 1
DISPLAYING INPUTS METHOD 2

TOPIC

How do I display arrays in MATLAB?

SUMMARY

% Language : Matlab 2008a;
% Authors : Autar Kaw and Jeremy Baker;
% Mfile available at
% http://numericalmethods.eng.usf.edu/blog/displaying_arrays.m;
% Last Revised : July 8, 2009;
% Abstract: This program shows you how to display arrays in MATLAB
clc
clear all

INTRODUCTION

disp('ABSTRACT')
disp('   This program shows you how to display arrays')
disp(' ')
disp('AUTHOR')
disp('   Autar K Kaw of http://autarkaw.wordpress.com and Jeremy Baker')
disp(' ')
disp('MFILE SOURCE')
disp('   http://numericalmethods.eng.usf.edu/blog/displaying_arrays.m')
disp(' ')
disp('LAST REVISED')
disp('   July 8, 2009')
disp(' ')

ABSTRACT
   This program shows you how to display arrays
 
AUTHOR
   Autar K Kaw of http://autarkaw.wordpress.com and Jeremy Baker
 
MFILE SOURCE
   http://numericalmethods.eng.usf.edu/blog/displaying_arrays.m
 
LAST REVISED
   July 8, 2009

INPUTS

Input x and y arrays, for example as y vs x data

x=[1  4  5   7 ];
y=[12  23  34  100];

DISPLAYING INPUTS METHOD 1

disp('INPUTS - Method 1')
n=length(x);
fprintf('The number of data points is %g \n',n)
disp('________________________')
disp('  x-values    y values  ')
disp('________________________')
for i=1:1:n
    fprintf('      %g          %g \n',x(i), y(i)')
end
disp('________________________')

INPUTS - Method 1
The number of data points is 4 
________________________
  x-values    y values  
________________________
      1          12 
      4          23 
      5          34 
      7          100 
________________________

DISPLAYING INPUTS METHOD 2

Suggested by guest blogger Jeremy Baker

disp('  ')
disp('INPUTS - Method 2')
n=length(x);
fprintf('The number of data points is %g \n',n)
disp('________________________')
disp('     x    y  ')
disp('________________________')
dataval=[x;y]';
disp(dataval)
disp('________________________')

  
INPUTS - Method 2
The number of data points is 4 
________________________
     x    y  
________________________
     1    12
     4    23
     5    34
     7   100

________________________