Class expval_vector (o2scl)¶
-
class
o2scl
::
expval_vector
: public o2scl::expval_base¶ Vector expectation value.
See expval_base for some general notes on this and related classes.
This is a similar to expval_scalar, except that it allows updating and statistics for a set of scalars en masse. The data is stored internally in ublas vector and matrix object, but the public member functions operate with template types which are compatible with any vector class which provides
double &operator[]
. It is assumed that each call to add() contains a new measurement for all of the vector indices.Report statistics
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template<class
vec_t
, classvec2_t
, classvec3_t
>
voidcurrent_avg_stats
(vec_t &avg, vec2_t &std_dev, vec3_t &avg_err, size_t &m_block, size_t &m_per_block)¶ Report current average, standard deviation, and the error in the average and include block information.
- Idea for Future:
This can’t be const because of ubmatrix_row, but should be made const later.
-
template<class
vec_t
, classvec2_t
, classvec3_t
>
voidcurrent_avg
(vec_t &avg, vec2_t &std_dev, vec3_t &avg_err)¶ Report current average, standard deviation, and the error in the average.
- Idea for Future:
This can’t be const because of ubmatrix_row in current_avg_stats(), but should be made const later.
-
template<class
vec_t
, classvec2_t
, classvec3_t
>
voidreblock_avg_stats
(size_t new_blocks, vec_t &avg, vec2_t &std_dev, vec3_t &avg_err, size_t &m_per_block) const¶ Report average, standard deviation, and the error in the average assuming a new block size.
-
template<class
vec_t
, classvec2_t
, classvec3_t
>
voidreblock_avg
(size_t new_blocks, vec_t &avg, vec2_t &std_dev, vec3_t &avg_err) const¶ Report average, standard deviation, and the error in the average assuming a new block size.
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friend void
hdf_output
(o2scl_hdf::hdf_file &hf, expval_vector &t, std::string name)¶
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friend void
hdf_input
(o2scl_hdf::hdf_file &hf, expval_vector &t, std::string name)¶
Public Types
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typedef boost::numeric::ublas::vector<double>
ubvector
¶
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typedef boost::numeric::ublas::matrix<double>
ubmatrix
¶
Public Functions
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expval_vector
()¶
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expval_vector
(size_t n, size_t n_blocks = 1, size_t n_per_block = 1)¶ Create for a vector of size
n
withn_blocks
blocks andn_per_block
points block.
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~expval_vector
()¶
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expval_vector
(const expval_vector &ev)¶ Copy constructor.
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expval_vector &
operator=
(const expval_vector &ev)¶ Copy constructor.
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void
set_blocks_vec
(size_t n, size_t n_blocks, size_t n_per_block)¶ Set for a vector of size
n
withn_blocks
blocks andn_per_block
points block.
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void
free
()¶ Free allocated data (but do not change the current values of
n_blocks
orn_per_block
)
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template<class