no_digital_shift
Do not shift this digital net
Specification
Alias: None
Arguments: None
Description
By default, the digital points will be shifted using a digital shift vector. If \(\Delta\) is a
vector of standard uniform random numbers, then we compute \(\boldsymbol{t}^{(i)} \otimes \Delta\), where
\(\otimes\) is the element-wise \(b\)-ary addition (or XOR) operator, see [DP10].
When this keyword is specified, the digital net points will not be shifted.
This means that the same set of digital net points will be generated, irrespective
of the value of the random seed. The first untransformed point in the sequence will always be
\(\boldsymbol{t}^{(0)} = (0, 0, \ldots, 0)\).
Examples
environment
tabular_data
tabular_data_file = 'samples.dat'
freeform
method
sampling
samples 32
sample_type
low_discrepancy
digital_net
generating_matrices inline
1 2 4 8 16
# this encodes the generating matrix
# 1 0 0 0 0
# 0 1 0 0 0
# 0 0 1 0 0
# 0 0 0 1 0
# 0 0 0 0 1
1 3 5 15 17
# this encodes the generating matrix
# 1 1 1 1 1
# 0 1 0 1 0
# 0 0 1 1 0
# 0 0 0 1 0
# 0 0 0 0 1
m_max 5
t_max 5
no_scrambling
no_digital_shift
variables
uniform_uncertain = 2
lower_bounds 0.0 0.0
upper_bounds 1.0 1.0
interface
analysis_drivers = 'genz'
analysis_components = 'cp1'
direct
responses
response_functions = 1
no_gradients
no_hessians
