This class computes statistics (minimum value, maximum value, mean, variance and standard deviation) of a population of floating-point values.
More...
#include <Stats.h>
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| | Stats () |
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| void | add (double val) |
| | Add a single sample. More...
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| void | add (double val, uint64_t n) |
| | Add n samples with constant value val. More...
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| void | add (const Stats &other) |
| | Add the samples from the other Stats instance. More...
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| uint64_t | size () const |
| | Return the size of the population, i.e., the total number of samples. More...
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| double | min () const |
| | Return the minimum value. More...
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| double | max () const |
| | Return the maximum value. More...
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| void | print (const std::string &name="", std::ostream &strm=std::cout, int precision=3) const |
| | Print statistics to the specified output stream. More...
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| double | avg () const |
| | Return the arithmetic mean, i.e. average, value. More...
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| double | mean () const |
| | Return the arithmetic mean, i.e. average, value. More...
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| double | var () const |
| | Return the population variance. More...
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| double | variance () const |
| | Return the population variance. More...
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| double | std () const |
| | Return the standard deviation (=Sqrt(variance)) as defined from the (biased) population variance. More...
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| double | stdDev () const |
| | Return the standard deviation (=Sqrt(variance)) as defined from the (biased) population variance. More...
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This class computes statistics (minimum value, maximum value, mean, variance and standard deviation) of a population of floating-point values.
variance = Mean[ (X-Mean[X])^2 ] = Mean[X^2] - Mean[X]^2, standard deviation = sqrt(variance)
- Note
- This class employs incremental computation and double precision.
| void add |
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double |
val, |
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uint64_t |
n |
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) |
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inline |
Add n samples with constant value val.
| void add |
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const Stats & |
other | ) |
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inline |
Add the samples from the other Stats instance.
Return the arithmetic mean, i.e. average, value.
Return the maximum value.
Return the arithmetic mean, i.e. average, value.
Return the minimum value.
| void print |
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const std::string & |
name = "", |
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std::ostream & |
strm = std::cout, |
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int |
precision = 3 |
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| const |
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inline |
Print statistics to the specified output stream.
Return the size of the population, i.e., the total number of samples.
Return the standard deviation (=Sqrt(variance)) as defined from the (biased) population variance.
Return the standard deviation (=Sqrt(variance)) as defined from the (biased) population variance.
Return the population variance.
- Note
- The unbiased sample variance = population variance *
| double variance |
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const |
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inline |
Return the population variance.
- Note
- The unbiased sample variance = population variance *
The documentation for this class was generated from the following file:
