Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>Make sure all variables are defined in the same environment as <code>getSetOrderData</code>? I find that if I define</p> <pre><code>fsub &lt;- function( x ){ return( x^2 ) } fmain &lt;- function( x ){ x &lt;- fsub( x ) + 2 return(x) } </code></pre> <p>And then I use them thus:</p> <pre><code>require(doParallel) cl &lt;- makeCluster( 2 , outfile = "" ) registerDoParallel( cl ) foreach( k = 1:2 , .verbose = TRUE , .combine = c ) %dopar%{ fmain( k ) } </code></pre> <p>I get results as I expected:</p> <pre><code>numValues: 2, numResults: 0, stopped: TRUE automatically exporting the following variables from the local environment: fmain, fsub got results for task 1 numValues: 2, numResults: 1, stopped: TRUE returning status FALSE got results for task 2 numValues: 2, numResults: 2, stopped: TRUE first call to combine function evaluating call object to combine results: fun(result.1, result.2) returning status TRUE [1] 3 6 </code></pre> <p>And further, if I call the functions - which are not otherwise defined inside the <code>.GlobalEnv</code>- inside another function using <code>source()</code> it still works. Let's say I make a script called <code>util_funcs.R</code> inside my home directory and paste those two functions in, but call them <code>fsub2</code> and <code>fmain2</code>. If I call it in the following way:</p> <pre><code>fsource &lt;- function( x ){ source( "~/util_funcs.R" ) x &lt;- fmain2( x ) return( x ) } </code></pre> <p>It still works:</p> <pre><code>numValues: 2, numResults: 0, stopped: TRUE automatically exporting the following variables from the local environment: fsource got results for task 1 numValues: 2, numResults: 1, stopped: TRUE returning status FALSE got results for task 2 numValues: 2, numResults: 2, stopped: TRUE first call to combine function evaluating call object to combine results: fun(result.1, result.2) returning status TRUE [1] 3 6 </code></pre> <p>Can you just copy/paste all the functions in a simple R script and use <code>source()</code>?</p>
    singulars
    1. This table or related slice is empty.
    1. POWhat can I do to avoid naming all functions using foreach
      singulars
      1. PTQuestion
    1. PTAnswer
    1. This table or related slice is empty.
    1. USSimon O'Hanlon
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POWhat can I do to avoid naming all functions using foreach
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTAcceptedByOriginator
    1. CORather than calling `source` from the task function (which may be called many times), I would initialize the workers with `clusterEvalQ(cl,source("~/util_funcs.R"))`. It's more efficient and the functions are available for any number of `foreach` loops.
      singulars
      1. PO
      1. USSteve Weston
 

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