# Statistics

Statistics(psi,base,nstep) returns a histogram listing the prefactors in psi.

## Input

• psi : Wavefunction
• base : double
• nstep : Integer

## Example

a small example

### Input

Statistics.Quanty
dofile("../definitions.Quanty")

print(psi1)

base=2.0
nstep=10

hist = Statistics(psi1,base,nstep)

for i=1,nstep do
io.write(string.format("%7.4f to %7.4f | %7.4f \n",base^-(i-1),base^-(i),hist[i]))
end

### Result

Statistics.out
WaveFunction: Wave Function
QComplex         =          0 (Real==0 or Complex==1)
N                =          2 (Number of basis functions used to discribe psi)
NFermionic modes =          6 (Number of fermions in the one particle basis)
NBosonic modes   =          0 (Number of bosons in the one particle basis)

#      pre-factor         Determinant
1   9.486832980505E-01       100010
2   3.162277660168E-01       110000

1.0000 to  0.5000 |  1.0000
0.5000 to  0.2500 |  1.0000
0.2500 to  0.1250 |  0.0000
0.1250 to  0.0625 |  0.0000
0.0625 to  0.0312 |  0.0000
0.0312 to  0.0156 |  0.0000
0.0156 to  0.0078 |  0.0000
0.0078 to  0.0039 |  0.0000
0.0039 to  0.0020 |  0.0000
0.0020 to  0.0010 |  0.0000