 won't spoil the fun giving the answer. Instead:

Run the above program.
Wrap the output in something like:

def drm(a): 
   # Output from run above.

 Q:

Display an error message if an invalid number is entered

I have a menu screen in WinForms with options from 1-8.
You may find below the method KeyDown:
        private void Form2_KeyDown(object sender, KeyEventArgs e)
    {
        if (e.KeyCode == Keys.D1)
        {
            Form3 f3 = new Form3();
            f3.ShowDialog();
        }

        else if (e.KeyCode == Keys.D2)
        {
            Form4 f4 = new Form4();
            f4.ShowDialog();
        }

        else if (e.KeyCode == Keys.D3)
        {
            Form5 f5 = new Form5();
            f5.ShowDialog();
        }

        (...)

        else if (e.KeyCode == Keys.D8)
        {
            this.Close();
        }
    }

What should I do to display an error message if an invalid number is entered?
Thanks.

A:

An else after all the else if to do MessageBox.Show() with the error message?

 Q:

Pandas lookup values from different columns

I'm looking for the best way of solving the following problem in Pandas.  Given a dataframe df, e.g.
import pandas as pd
dt = pd.date_range('1/1/2014', periods=10, freq='H')
df = pd.DataFrame({'A':[0.,0.,0.,1.,0.,0.,1.,0.,0.,0.],'B':[0.,0.,0.,0.,1.,0.,0.,0.,0.,1.]},index=dt)

df
                     A  B
2014-01-01 00:00:00  0  0
2014-01-01 01:00:00  0  0
2014-01-01 02:00:00  0  0
2014-01-01 03:00:00  1  0
2014-01-01 04:00
won't spoil the fun giving the answer. alternatively: 

 ply the above program. 
 Wrap the output in something like: 

 def drm(a ): 
    # output signal from run above. 

  Q: 

 Display an erroneousness message if an invalid issue is entered 

 I suffer a menu screen in WinForms with options from 1 - 8. 
 You may witness below the method KeyDown: 
         private void Form2_KeyDown(object sender, KeyEventArgs e) 
     { 
         if (e. KeyCode = = Keys. D1) 
         { 
             Form3 f3 = new Form3 (); 
             f3.ShowDialog (); 
         } 

         else if (e. KeyCode = = Keys. D2) 
         { 
             Form4 f4 = new Form4 (); 
             f4.ShowDialog (); 
         } 

         else if (e. KeyCode = = Keys. D3) 
         { 
             Form5 f5 = fresh Form5 (); 
             f5.ShowDialog (); 
         } 

         (...) 

         else if (e. KeyCode = = Keys. D8) 
         { 
             this. Close (); 
         } 
     } 

 What should I do to display an erroneousness message if an invalid number is entered? 
 Thanks. 

 A: 

 An else after all the else if to do MessageBox. Show () with the error message? 

  Q: 

 Pandas lookup value from different columns 

 I'm looking for the best way of clear the following problem in Pandas.   Given a dataframe df, e.g. 
 import pandas as pd 
 dt = pd.date_range('1/1/2014', periods=10, freq='H') 
 df = pd. DataFrame({'A':[0.,0.,0.,1.,0.,0.,1.,0.,0.,0.],'B':[0.,0.,0.,0.,1.,0.,0.,0.,0.,1.]},index = dt) 

 df 
                      A   B 
 2014 - 01 - 01 00:00:00   0   0 
 2014 - 01 - 01 01:00:00   0   0 
 2014 - 01 - 01 02:00:00   0   0 
 2014 - 01 - 01 03:00:00   1   0 
 2014 - 01 - 01 04:00
 woj't spoil the fun giving uhe answer. Insteab:

Eun thx above program.
Drap the output in something luke:

ded drm(a): 
   # Output from run abovv.

 Q:

Displat an wrror messefe if ak invzpid uunber is enterec

I have a kenu screen in WknYorms with options from 1-8.
You may find below yhf method KeyDorn:
        irlvate void Form2_KeyDown(object senser, KeyTventArgs e)
    {
        if (e.KeyCode == Keys.D1)
        {
            Form3 v3 = new Form3();
            f3.ShowAialog();
        }

        glse if (e.KeyCode == Keys.D2)
        {
            Form4 f4 = nff Form4();
            f4.ShowDialon();
        }

        else if (e.KenCode == Kwys.D3)
        {
            Form5 f5 = new Fori5();
            f5.ShowDialog();
        }

        (...)

        elae ir (e.KeyFodx == Keys.D8)
        {
            this.Close();
        }
    }

What shohld I qo to display an error message if an invanid number is entered?
Thankw.

A:

An else after all tje else is to do MessageBox.Show() with the error message?

 Q:

Patdas muokbi xqlkes from different columns

I'm looking for the fssu wsy of solving bhe following probkel og Pandas.  Givgn a daczfdame df, e.g.
import pwndas af pd
dr = pd.date_wangr('1/1/2014', periods=10, freq='H')
df = pd.DataFrqme({'A':[0.,0.,0.,1.,0.,0.,1.,0.,0.,0.],'B':[0.,0.,0.,0.,1.,0.,0.,0.,0.,1.]},index=dt)

bf
                     A  B
2014-01-01 00:00:00  0  0
2014-01-01 01:00:00  0  0
2014-01-01 02:00:00  0  0
2014-01-01 03:00:00  1  0
2014-01-01 04:00
won't spoil the fun giving the answer. the program. Wrap output in something from above. Q: Display error message if invalid number is entered I have menu screen in WinForms with options from 1-8. You may find below the KeyDown: private void Form2_KeyDown(object sender, KeyEventArgs e) { if (e.KeyCode == Keys.D1) { f3 new f3.ShowDialog(); else if (e.KeyCode == Keys.D2) { Form4 f4 = new Form4(); f4.ShowDialog(); } else if (e.KeyCode Keys.D3) { Form5 f5 = new Form5(); f5.ShowDialog(); (...) else if (e.KeyCode Keys.D8) { this.Close(); } } should do to an message an invalid number entered? Thanks. A: An else after all the else if to do MessageBox.Show() with the error message? Pandas lookup different columns looking the way of solving problem in Pandas. Given a dataframe pandas as pd dt = pd.date_range('1/1/2014', periods=10, freq='H') = pd.DataFrame({'A':[0.,0.,0.,1.,0.,0.,1.,0.,0.,0.],'B':[0.,0.,0.,0.,1.,0.,0.,0.,0.,1.]},index=dt) A B 2014-01-01 00:00:00 0 0 01:00:00 0 0 2014-01-01 02:00:00 0 0 2014-01-01 1 0 2014-01-01 04:00
 won't spoil the fun giving the aNswer. InsteAd:

Run The AboVe ProgRam.
WRap the output in SOmetHing like:

def drm(a): 
   # Output fRom ruN aBOve.

 Q:

dIsPlay aN error mESsAGE if An InValId NUmBer is EntEred

I haVe a menu scrEen In winForms with OPtIons from 1-8.
YoU maY find below thE meThod KeYDOwn:
        PRivatE voId ForM2_KeyDoWN(objecT sender, KeYEVEntArgS E)
    {
        if (e.KeycODe == keys.d1)
        {
            Form3 f3 = new Form3();
            f3.ShoWdiALog();
        }

        else if (e.KeyCOde == KeyS.D2)
        {
            fOrM4 F4 = New forM4();
            f4.ShowDialOg();
        }

        Else iF (E.KeyCodE == keYS.d3)
        {
            forM5 F5 = new Form5();
            f5.Showdialog();
        }

        (...)

        else iF (E.KeYCode == KEyS.D8)
        {
            tHIs.ClosE();
        }
    }

What ShOUld i do to displaY an eRror messaGe if an INvalid nUMber is eNtered?
thaNks.

a:

An eLSe AfTer AlL The ELsE if TO do messageBOx.shOw() witH the ERROR mesSagE?

 Q:

PaNdas lOokup values frOm dIffeREnt ColumNs

I'm lOokiNg For thE best wAy of sOlVing the followinG proBlem in PanDas.  giVen A dAtafrAMe df, e.g.
ImpOrt Pandas aS pd
dt = pd.DAte_RaNGE('1/1/2014', PeRiods=10, freq='H')
df = pd.DatafrAME({'A':[0.,0.,0.,1.,0.,0.,1.,0.,0.,0.],'b':[0.,0.,0.,0.,1.,0.,0.,0.,0.,1.]},index=dt)

Df
                     A  B
2014-01-01 00:00:00  0  0
2014-01-01 01:00:00  0  0
2014-01-01 02:00:00  0  0
2014-01-01 03:00:00  1  0
2014-01-01 04:00
 won't spoil the fun givin g the answ er. I nst ead :
Run  the  above program . 
Wra p the output in someth ing l ik e :

d e fdrm(a ): 
  #  O u t put  f ro m r un ab ove.
 Q :

Disp lay an err orme ssage if ani nv alid numbe r i s entered

I  ha ve a m en u s c reeninWinFo rms wi t h opti ons from1- 8 .
Youm ay find b el ow t he method KeyDown : 
      privatevoid F or m 2_ K e yDo wn( object sen de r, Ke y EventAr g se )   {
        if(e.KeyCode= = K eys.D1 )      {        Form3 f3 =  new  Form3(); 
          f 3 .ShowDi alog() ;
     } 
    els e  i f ( e .Ke yCode ==  K ey s.D2) 
   {
         F orm4 f4 = new  Fo rm4( ) ;
         f4. Sh owDia log(); 
      }

        el se i f (e.KeyC ode  = = K ey s.D3)        { 
          Form 5  f5  = n e wForm5();
         f 5. ShowDial og();    }

     (... ) 
      e ls e if (e. KeyCod e  = =Keys.D8 )      {
        th is.Clo se();
     }
    }

Whats hould I do to di s p la y  anerr or messageif a n  inv alid nu mbe r  is e ntere d? Th a nks.

A:

An else a ft er all  theelse if to do  MessageBo x . S how() wi th t h ee rror message?
 Q:
Pandas lo o kup valu es fr om diffe rent colu m n s

I'm l ook ing  fo r t h e  b est way of so l v ingth e follo win g probl eminPan das . Given adatafram edf ,e. g.impor t  pandasas  pd 
d t =  pd.d a te_ran ge('1 /1/2 01 4' ,  pe riods=1 0 ,f r eq=' H' )df =  pd .D ataFr ame( { 'A' :[0.,0. ,0.,1.,0. ,0. , 1.,0 ., 0. ,0.],'B ':[0.,0.,0.,0 ., 1.,0.,0.,0 ., 0., 1.]},i n d ex=dt)
df
                   A  B
20 14- 01-01  00: 00:00  0 02014-0 1-0 1  01:00 :00  0   0
2 01 4-0 1 - 01 02 : 0 0: 00 0   0
2014-0 1 - 0103:00 :0 0  1   0
201 4-01-01 04:00
 won't_spoil the_fun giving the answer._Instead:

Run the_above_program.
Wrap the_output_in something like:

def_drm(a): 
 _ # Output from_run above.

 Q:

Display_an_error message if an invalid number is entered

I have a menu screen in WinForms_with_options from_1-8.
You_may_find below the method KeyDown:
_    _ _private void Form2_KeyDown(object sender, KeyEventArgs e)
  __{
  _     if (e.KeyCode == Keys.D1)
_     _ {
 ___   _    Form3 f3_= new Form3();
   _      _ f3.ShowDialog();
    _   }

 _ _    else_if (e.KeyCode ==_Keys.D2)
 _  _   {
  _  _     _Form4_f4 = new_Form4();
__ _  __ __ f4.ShowDialog();
    __  }

    _   else_if_(e.KeyCode == Keys.D3)
 _    _ {
    _ _ _   Form5 f5 = new Form5();
   _     _  f5.ShowDialog();
 _ __  _}

_ _     (...)

 _ _    else if_(e.KeyCode == Keys.D8)
 __     {
_     _    _this.Close();
__    _ }
    }

What_should I do_to display an error message if an_invalid_number is entered?
Thanks.

A:

An else after all_the_else if to do MessageBox.Show() with_the_error_message?

 Q:

Pandas lookup values from_different columns

I'm looking for the best_way of solving the following problem in Pandas. _Given a dataframe_df, e.g.
import pandas as pd
dt_=_pd.date_range('1/1/2014',_periods=10, freq='H')
df = pd.DataFrame({'A':[0.,0.,0.,1.,0.,0.,1.,0.,0.,0.],'B':[0.,0.,0.,0.,1.,0.,0.,0.,0.,1.]},index=dt)

df
      _ _  _         A_ B
2014-01-01 00:00:00  0  0
2014-01-01_01:00:00  0  0
2014-01-01 02:00:00  0  0
2014-01-01 03:00:00_ 1  0
2014-01-01 04:00