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Object-oriented Scientific Computing Library: Version 0.910
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Vector expectation value. More...
#include <expect_val.h>
See expect_val for some general notes on this and related classes.
This class is experimental.
This is a similar to scalar_ev, except that it allows updating and statistics for a set of scalars en masse. The data is stored internally in uvector and umatrix objects, but the public member functions operate with template types which are compatible with any vector class which provides double &operator[]
.
Internally, data is stored in matrices designating the first (row) index as the user-specified vector index and designating the second (column) index as the block index.
Definition at line 325 of file expect_val.h.
Public Member Functions | |
vector_ev (size_t n) | |
Create for a vector of size n with no blocking. | |
vector_ev (size_t n, size_t n_blocks, size_t n_per_block) | |
Create for a vector of size n with n_blocks blocks and n_per_block points block. | |
virtual void | set_blocks (size_t n, size_t n_blocks, size_t n_per_block) |
Set for a vector of size n with n_blocks blocks and n_per_block points block. | |
vector_ev (const vector_ev &ev) | |
Copy constructor. | |
vector_ev & | operator= (const vector_ev &ev) |
Copy constructor. | |
virtual void | free () |
Free allocated data. | |
virtual void | reset () |
Clear all the data. | |
template<class vec_t > | |
void | add (vec_t &v) |
Add measurement of value val . | |
Report statistics | |
template<class vec_t , class vec2_t , class vec3_t > | |
void | current_avg_stats (vec_t &avg, vec2_t &std_dev, vec3_t &avg_err, size_t &m_block, size_t &m_per_block) const |
Report current average, standard deviation, and the error in the average and include block information. | |
template<class vec_t , class vec2_t , class vec3_t > | |
void | current_avg (vec_t &avg, vec2_t &std_dev, vec3_t &avg_err) const |
Report current average, standard deviation, and the error in the average. | |
template<class vec_t , class vec2_t , class vec3_t > | |
void | reblock_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 , class vec2_t , class vec3_t > | |
void | reblock_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. | |
Protected Attributes | |
umatrix | last |
The most recent values for each block. | |
umatrix | vals |
The average for each block. | |
uvector | current |
The current rolling average. | |
size_t | nvec |
The size of the vector. |
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