Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>I think this can be done using some string evaluation and <a href="http://www.mathworks.com/help/techdoc/ref/f16-42340.html#f16-7121" rel="nofollow">set operations</a>.</p> <p>If we have</p> <pre><code>result = me: {'dad' 'grandpa' 'half_sis'} step_mom: {'half_sis'} dad: {'me' 'grandpa' 'half_sis'} half_sis: {'mom' 'me' 'dad' 'grandpa'} grandpa: {'me' 'dad' 'half_sis'} </code></pre> <p>We can select one person and find that persons relatives. </p> <pre><code>s = result.step_mom s = 'half_sis' </code></pre> <p>Using some string operations we can then find the relatives of the relatives like this:</p> <pre><code>eval(char(strcat('result.',s))) ans = 'mom' 'me' 'dad' 'grandpa' </code></pre> <p>This gives us an idea for a function:</p> <pre><code>function children=recur_getchildren(result,person) %Find all relatives of given person s = eval(strcat('result.',person)); %Go through all relatives found in s for i=1:size(s,2) children = union(s(i),eval(char(strcat('result.',s(i))))); end %remove orignal relative from other relatives children=setdiff(children,person); </code></pre> <p>Lets test it:</p> <pre><code>relatives=recur_getchildren(result,'mom') relatives = 'dad' 'grandpa' 'half_sis' 'me' </code></pre> <p>Note that you need to change step_mom into mom (or vice versa) for this to work in all cases.</p> <p>EDIT: Just make it recursive. Something like this:</p> <pre><code>function [All_relatives,not_examined]=... recur_getchildren(result,person,examined,All_relatives) %Find all relatives of given person s = eval(strcat('result.',person)); children = ''; %Go through all relatives found in s for i=1:size(s,2) children = union(children,eval(char(strcat('result.',s(i))))); end %Save all found relatives All_relatives = union(All_relatives,children); All_relatives = union(All_relatives,s); %Save all examined persons examined = union(examined,s); examined = union(examined,person); not_examined = setdiff(All_relatives,examined); count=0; while length(not_examined)&gt;0 count=count+1; examined = union(examined,not_examined(count )); [new_relatives,not_examined] = recur_getchildren(result,char(not_examined(count)),examined,All_relatives); All_relatives = union(All_relatives,new_relatives); end </code></pre> <p>This was just quickly put together, but should work. Give <em>examined</em> and *All_relatives* input as empty strings when running. </p> <pre><code>children=recur_getchildren(result,'me','','') </code></pre>
    singulars
    1. This table or related slice is empty.
    1. POrecursion in rearranging related data
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USGhaul
    1. USGhaul
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. COnot sure if I'm seeing this correctly, but this code doesn't seem to accomodate getting a person's relative's relative's relatives and so on... It only seems to be getting the person's relative and those relative's relatives.
      singulars
      1. PO
      1. USmugetsu
    2. CO@mugetsu You can run the function recursivly. See my edit.
      singulars
      1. PO
      1. USGhaul
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload