Requested precision: 1e-07 absolute, 1e-07 relative

1-D integration method: RooIntegrator1D (RooImproperIntegrator1D if open-ended)
2-D integration method: RooAdaptiveIntegratorND (N/A if open-ended)
N-D integration method: RooAdaptiveIntegratorND (N/A if open-ended)

Available integration methods:

*** RooBinIntegrator ***
Capabilities: [1-D] [2-D] [N-D] 
Configuration: 
  1)  numBins = 100

*** RooIntegrator1D ***
Capabilities: [1-D] 
Configuration: 
  1)        sumRule = Trapezoid(idx = 0)

  2)  extrapolation = Wynn-Epsilon(idx = 1)

  3)       maxSteps = 20
  4)       minSteps = 999
  5)       fixSteps = 0

*** RooIntegrator2D ***
Capabilities: [2-D] 
Configuration: 
(Depends on 'RooIntegrator1D')

*** RooSegmentedIntegrator1D ***
Capabilities: [1-D] 
Configuration: 
  1)  numSeg = 3
(Depends on 'RooIntegrator1D')

*** RooSegmentedIntegrator2D ***
Capabilities: [2-D] 
Configuration: 
(Depends on 'RooSegmentedIntegrator1D')

*** RooImproperIntegrator1D ***
Capabilities: [1-D] [OpenEnded] 
Configuration: 
(Depends on 'RooIntegrator1D')

*** RooMCIntegrator ***
Capabilities: [1-D] [2-D] [N-D] 
Configuration: 
  1)   samplingMode = Importance(idx = 0)

  2)        genType = QuasiRandom(idx = 0)

  3)        verbose = false(idx = 0)

  4)          alpha = 1.5
  5)    nRefineIter = 5
  6)  nRefinePerDim = 1000
  7)     nIntPerDim = 5000

*** RooAdaptiveIntegratorND ***
Capabilities: [2-D] [N-D] 
Configuration: 
  1)  maxEval2D = 100000
  2)  maxEval3D = 1e+06
  3)  maxEvalND = 1e+07
  4)    maxWarn = 5

*** RooAdaptiveGaussKronrodIntegrator1D ***
Capabilities: [1-D] [OpenEnded] 
Configuration: 
  1)  maxSeg = 100
  2)  method = 21Points(idx = 2)


*** RooGaussKronrodIntegrator1D ***
Capabilities: [1-D] [OpenEnded] 
Configuration: 

[#3] INFO:Integration -- RooRealIntegral::ctor(landau_Int[x]) Constructing integral of function landau over observables(x) with normalization () with range identifier <none>
[#3] DEBUG:Integration -- landau: Adding observable x as shape dependent
[#3] DEBUG:Integration -- landau: Adding parameter 0 as value dependent
[#3] DEBUG:Integration -- landau: Adding parameter 0.1 as value dependent
[#3] INFO:Integration -- landau: Observable x is suitable for analytical integration (if supported by p.d.f)
[#3] INFO:Integration -- landau: Observables (x) are numerically integrated
[#1] INFO:NumericIntegration -- RooRealIntegral::init(landau_Int[x]) using numeric integrator RooIntegrator1D to calculate Int(x)
 [1] int_dx landau(x) = 0.0989653362054419
[#3] INFO:Integration -- RooRealIntegral::ctor(landau_Int[x]) Constructing integral of function landau over observables(x) with normalization () with range identifier <none>
[#3] DEBUG:Integration -- landau: Adding observable x as shape dependent
[#3] DEBUG:Integration -- landau: Adding parameter 0 as value dependent
[#3] DEBUG:Integration -- landau: Adding parameter 0.1 as value dependent
[#3] INFO:Integration -- landau: Observable x is suitable for analytical integration (if supported by p.d.f)
[#3] INFO:Integration -- landau: Observables (x) are numerically integrated
[#1] INFO:NumericIntegration -- RooRealIntegral::init(landau_Int[x]) using numeric integrator RooAdaptiveGaussKronrodIntegrator1D to calculate Int(x)
 [2] int_dx landau(x) = 0.098957102921895
[#3] INFO:Integration -- RooRealIntegral::ctor(landau_Int[x]) Constructing integral of function landau over observables(x) with normalization () with range identifier <none>
[#3] DEBUG:Integration -- landau: Adding observable x as shape dependent
[#3] DEBUG:Integration -- landau: Adding parameter 0 as value dependent
[#3] DEBUG:Integration -- landau: Adding parameter 0.1 as value dependent
[#3] INFO:Integration -- landau: Observable x is suitable for analytical integration (if supported by p.d.f)
[#3] INFO:Integration -- landau: Observables (x) are numerically integrated
[#1] INFO:NumericIntegration -- RooRealIntegral::init(landau_Int[x]) using numeric integrator RooAdaptiveGaussKronrodIntegrator1D to calculate Int(x)
 [3] int_dx landau(x) = 0.098957102921895
--- RooAbsArg ---
  Value State: clean
  Shape State: clean
  Attributes:  [SnapShot_ExtRefClone] 
  Address: 0x57ac530
  Clients: 
  Servers: 
  Proxies: 
--- RooAbsCategory ---
  Value = 1 "15Points)
  Possible states:
    15Points	1
    21Points	2
    31Points	3
    41Points	4
    51Points	5
    61Points	6
    WynnEpsilon	0