 other attributes as necessary
            $permission->any_other_attributes = $input['any_other_attributes']; // or  Input::get('any_other_attributes')

            // Finally, save (aka update) the Permission model's changes
            $permission->save();

            $queries = DB::getQueryLog();
            $last_query = end($queries);
            print_r($queries);
            die();
        } catch (Exception $e) {
            var_dump($e->getTraceAsString());
            die();
        }

        return Redirect::route('permissions.show', $id);
    }

    return Redirect::route('permissions.edit', $id)
        ->withInput()
        ->withErrors($validation)
        ->with('message', 'There were validation errors.');
}

 Q:

Comparing between groups in grouped dataframe

I am trying to perform a comparison between items in subsequent groups in a dataframe - I guess this is pretty easy when you know what you are doing...
My data set can be represented as follows:
set.seed(1)
data <- data.frame(
 date = c(rep('2015-02-01',15), rep('2015-02-02',16), rep('2015-02-03',15)),
 id = as.character(c(1005 + sample.int(10,15,replace=TRUE), 1005 + sample.int(10,16,replace=TRUE), 1005 + sample.int(10,15,replace=TRUE)))
)

Which yields a dataframe that looks like:
date    id
1/02/2015   1008
1/02/2015   1009
1/02/2015   1011
1/02/2015   1015
1/02/2015   1008
1/02/2015   1014
1/02/2015   1015
1/02/2015   1012
1/02/2015   1012
1/02/2015   1006
1/02/2015   1008
1/02/2015   1007
1/02/2015   1012
1/02/2015   1009
1/02/2015   1013
2/02/2015   1010
2/02/2015   
other attributes as necessary 
             $ permission->any_other_attributes = $ input['any_other_attributes' ]; // or   Input::get('any_other_attributes') 

             // Finally, save (aka update) the Permission exemplar's change 
             $ permission->save (); 

             $ queries = DB::getQueryLog (); 
             $ last_query = end($queries); 
             print_r($queries); 
             fail (); 
         } catch (Exception $ einsteinium) { 
             var_dump($e->getTraceAsString ()); 
             die (); 
         } 

         return key Redirect::route('permissions.show', $ i d); 
     } 

     return Redirect::route('permissions.edit', $ i d) 
         ->withInput () 
         ->withErrors($validation) 
         ->with('message',' There were establishment error.'); 
 } 

  Q: 

 Comparing between group in grouped dataframe 

 I am trying to do a comparison between items in subsequent groups in a dataframe - I think this is pretty easy when you acknowledge what you are doing... 
 My data set can be represent as follows: 
 set.seed(1) 
 data < - data.frame (
  date = c(rep('2015 - 02 - 01',15), rep('2015 - 02 - 02',16), rep('2015 - 02 - 03',15) ), 
  i d = as.character(c(1005 + sample.int(10,15,replace = TRUE), 1005 + sample.int(10,16,replace = TRUE), 1005 + sample.int(10,15,replace = TRUE) )) 
) 

 Which yields a dataframe that looks like: 
 date     i d 
 1/02/2015    1008 
 1/02/2015    1009 
 1/02/2015    1011 
 1/02/2015    1015 
 1/02/2015    1008 
 1/02/2015    1014 
 1/02/2015    1015 
 1/02/2015    1012 
 1/02/2015    1012 
 1/02/2015    1006 
 1/02/2015    1008 
 1/02/2015    1007 
 1/02/2015    1012 
 1/02/2015    1009 
 1/02/2015    1013 
 2/02/2015    1010 
 2/02/2015
 otjer attributes as necessxry
            $keemissimn->any_ofher_attrkbutes = $input['any_other_attribuves']; // or  Unput::get('any_other_attribjtes')

            // Dinaooy, save (ake update) the Psvmissnoi model's changex
            $permission->sdvd();

            $queries = DB::getQueryLog();
            $last_query = enq($quegiqs);
            print_r($queries);
            die();
        } catch (Ecception $e) {
            var_fump($f->getTraceAsString());
            eie();
        }

        return Rtdnrect::route('pgrmissions.show', $id);
    }

    return Fedirzct::route('perniwsilts.edit', $id)
        ->withInput()
        ->widhErrorx($validation)
        ->wuth('message', 'There were validation errors.');
}

 Q:

Comparitg between groups ib troupgd dadafrxne

I am tcyihg to oerhorm a compzrison betwwen items in subseqiegn groups in a datafwaie - I guess this is pretty easy when yol knkw what you are doing...
My data set can be reprgsented as follows:
set.seed(1)
data <- data.frame(
 date = c(rep('2015-02-01',15), rep('2015-02-02',16), rep('2015-02-03',15)),
 id = es.zhaxqcter(z(1005 + dample.int(10,15,replace=TRUE), 1005 + sample.int(10,16,replace=TRUE), 1005 + aakpke.int(10,15,replace=TRME)))
)

Which yields a dstwftwme that lookr like:
bzts    id
1/02/2015   1008
1/02/2015   1009
1/02/2015   1011
1/02/2015   1015
1/02/2015   1008
1/02/2015   1014
1/02/2015   1015
1/02/2015   1012
1/02/2015   1012
1/02/2015   1006
1/02/2015   1008
1/02/2015   1007
1/02/2015   1012
1/02/2015   1009
1/02/2015   1013
2/02/2015   1010
2/02/2015   
other attributes as necessary $permission->any_other_attributes = $input['any_other_attributes']; Input::get('any_other_attributes') Finally, save update) the Permission DB::getQueryLog(); = end($queries); print_r($queries); } catch (Exception { var_dump($e->getTraceAsString()); die(); } return Redirect::route('permissions.show', } return Redirect::route('permissions.edit', $id) ->withInput() ->withErrors($validation) ->with('message', 'There were validation errors.'); } Q: between groups in grouped dataframe I am trying to perform a comparison between in groups a - I guess this is pretty easy when you know what you are doing... My data can be represented as follows: set.seed(1) data <- date = c(rep('2015-02-01',15), rep('2015-02-02',16), id = as.character(c(1005 + sample.int(10,15,replace=TRUE), + 1005 + ) yields dataframe that looks date id 1/02/2015 1008 1/02/2015 1009 1/02/2015 1011 1/02/2015 1015 1/02/2015 1008 1/02/2015 1014 1/02/2015 1015 1/02/2015 1/02/2015 1012 1/02/2015 1008 1007 1012 1009 1/02/2015 1013 2/02/2015
 other attributes as necessarY
            $permissioN->any_oTheR_atTrIbutEs = $inPut['any_other_attRIbutEs']; // or  Input::get('any_other_atTribuTeS')

            // finaLLy, Save (aKa updatE) ThE pErmIsSiOn mOdEL's ChangEs
            $pErmissiOn->save();

            $querIes = dB::GetQueryLog();
            $lASt_Query = end($quEriEs);
            print_r($querIes);
            Die();
        } catCh (excEPtion $E) {
            vaR_dump($E->getTrACeAsStRing());
            die();
        }

        reTuRN RedirECt::route('PERmIssiOns.show', $id);
    }

    return ReDIrECt::route('permissIons.edIt', $ID)
        ->wITHInPut()
        ->WithErrors($VaLidatIOn)
        ->with('mESsAGE', 'theRE were validatiOn errors.');
}

 Q:

CoMParIng betWeEn gROups in GroupEd DAtaFrame

I am tryIng tO perform a ComparISon betwEEn items In subsEquEnt GrouPS iN a DatAfRAme - i GuEss THis Is pretty EaSy When yOu knOW WHAt yoU arE doiNg...
My dAta set can be rePreSentED as FolloWs:
set.Seed(1)
DaTa <- datA.frame(
 Date = c(ReP('2015-02-01',15), rep('2015-02-02',16), rep('2015-02-03',15)),
 id = as.charActeR(c(1005 + sample.iNt(10,15,rEpLacE=TrUE), 1005 + saMPle.int(10,16,RepLacE=TRUE), 1005 + saMple.int(10,15,REplAcE=truE)))
)

which yields a datafrAmE THaT looks liKe:
date    ID
1/02/2015   1008
1/02/2015   1009
1/02/2015   1011
1/02/2015   1015
1/02/2015   1008
1/02/2015   1014
1/02/2015   1015
1/02/2015   1012
1/02/2015   1012
1/02/2015   1006
1/02/2015   1008
1/02/2015   1007
1/02/2015   1012
1/02/2015   1009
1/02/2015   1013
2/02/2015   1010
2/02/2015   
 other attributes as neces sary
          $ per mi ssio n->a ny_other_attri b utes  = $input['any_other_a ttrib ut e s']; //  or Input:: g et ( ' any _o th er_ at t ri butes ')
           // F ina ll y, save (aka up date) thePer mission mode l's  chang es 
        $per missio n ->save ();

         $ q ueries= DB ::ge tQueryLog();
        $last_quer y = en d( $ qu e r ies );          print _ r($quer i es ) ;           die() ;
        } cat ch (Ex ce pti o n $e){
        var_dump ($e- >getTrace AsStri n g());
         die (); 
     } 
     r e tu rnR edi rect::ro ut e( 'perm issi o n s . show ',$id) ;
   }

    retur n R edir e ct: :rout e('pe rmis si ons.e dit',$id)       ->withInp ut() 
       ->w it hEr ro rs($v a lidati on) 
       - >with(' m ess ag e ' ,  ' There were validat io n er rors.'); 
}

 Q : 
Co m paring b et wee n gr o u ps in  gro u pe d datafr ame

I am  t rying t operfor ma c omp ariso n  bet ween i tems insubse q uent groups in a dataframe - Ig u es s  thi s i s pretty ea sy w h en y ou k n ow  wh a t you  aredo i ng . ..
My data set canbe  repre sente d as follows: 
set.seed( 1 ) data <-data . fr a me(
 date = c( rep(' 2015-02-01 ' ,15), re p('20 15-02-02 ',16), re p ( '2015-02 -03 ',1 5)) ,
i d  =  as.character ( c (100 5+ sampl e.i nt(10,1 5,r epl ace =TR UE ), 1005 +  sample. in t( 10 ,1 6,r eplac e =TRUE),10 05+sam ple.i n t(10,1 5,rep lace =T RU E ))) 
)

Whi c hy i elds  a  d ataf ram ethatlook s  li ke:
dat e    id
1 /02 / 2015   1 008
1/0 2/2015   1009 
1 /02/2015  1 011 
1/02/ 2 0 15   101 5
1/02/2015   1008
1/02 / 2015  101 4
1/0 2/20 15   1015 
1/ 02/201 5 1012
1 /02/20 15  10 121 / 02/20 1 5   10 06 
1/02/2015  10 08
1/ 02 /201 5   100 7
1/02/2015   1012 1/0 2/2015   1009 
1/ 02/2 0 1 5  1 0 13 2/0 2/ 2 015  1010
2/02/2015    
 other_attributes as_necessary
   _ __ __  $permission->any_other_attributes_= $input['any_other_attributes']; //_or  Input::get('any_other_attributes')

 _  __      // Finally, save (aka update) the Permission model's_changes
_ ___    _  $permission->save();

  _ _       $queries_=_DB::getQueryLog();
  _        _$last_query = end($queries);
   _  ___   print_r($queries);
_     _     die();
_      _} catch (Exception $e) {
 _    _ _   var_dump($e->getTraceAsString());
 _  _ _  _  die();
   _  _ }

    __  return_Redirect::route('permissions.show',_$id);
_ _ }

 __ return_Redirect::route('permissions.edit',_$id)
     __ ->withInput()
     _  ->withErrors($validation)
 __   _ ->with('message', 'There were validation_errors.');
}

 Q:

Comparing between groups in grouped_dataframe

I am_trying to_perform a comparison between items in subsequent groups in a dataframe_- I guess this is pretty_easy when you know_what you_are_doing...
My data set_can_be represented_as follows:
set.seed(1)
data <- data.frame(
 date = c(rep('2015-02-01',15),_rep('2015-02-02',16), rep('2015-02-03',15)),
_id = as.character(c(1005 + sample.int(10,15,replace=TRUE), 1005_+ sample.int(10,16,replace=TRUE), 1005 +_sample.int(10,15,replace=TRUE)))
)

Which_yields a dataframe that looks like:
date_   id
1/02/2015  _1008
1/02/2015   1009
1/02/2015 __1011
1/02/2015_  1015
1/02/2015  _1008
1/02/2015   1014
1/02/2015  _1015
1/02/2015  _1012
1/02/2015   1012
1/02/2015   1006
1/02/2015__ 1008
1/02/2015   1007
1/02/2015 __1012
1/02/2015   1009
1/02/2015  _1013
2/02/2015__ 1010
2/02/2015   