MATLAB: Simple Question, Please Answer

simple

hi i'm new and learning about genetic algorithm sample codes

this is part of the code

for ii=1:popsize
   for jj=1:nd
      g(ii,jj)=rand*(U-L)+L;
   end
end

can anyone explain me, how to read that code?

and what is

for x = 1:n

(i confused with the : )

Best Answer

See colon, : Vector creation, array subscripting, and for-loop iteration and for for loop to repeat specified number of times

Related Solutions

MATLAB: Pre allocating triple loops

n = numel(L);
c = cell(n,n,45);
for ii = 1:n
    for jj = 1:n
        for kk = 1:45        
            c{ii,jj,kk} = cross(L1(ii,:),a{jj}(kk,:));
        end
    end
 end

MATLAB: Simple question, array of strings

Walter is right, with no additional details, type cell is the preferred class for building arrays of varying length strings:

list1 = {'random_string1','random_string2'}
list1 = 
    'random_string1'    'random_string2'

to access one of the strings in list

list1{1}
 =
random_string1

to access one character in one string of list1

   list1{1}(1)
   =
  r

to generate the array of lists, one way could be

Array=[list1;list2;list3]
Array = 
    'random_string1'    'random_string2'
    'random_string1'    'random_string2'
    'random_string1'    'random_string2'

to access one of the strings in array, one can either use linear indices

Array{1}
 =
random_string1
Array{end}
=
random_string2

or sub-indices

Array{2,2}
 =
random_string2

to access a list in string, use :

Array{1,:}
 =
random_string1
 =
random_string2

and to access a single character in Array

   Array{1,1}(1)
   =
  r

if you find this answer useful would you please be so kind to mark my answer as Accepted Answer?

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thanks in advance

John BG

<mailto:jgb2012@sky.com jgb2012@sky.com>

Best Answer

Related Solutions

MATLAB: Pre allocating triple loops

MATLAB: Simple question, array of strings

Related Question