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interval_statistics [Thu Jul 11 23:05:14 2013] Alexander |
interval_statistics [Sun Nov 8 12:21:24 2015] 127.0.0.1 external edit |
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Setting of intervals in '' | Setting of intervals in '' | ||
+ | ===== Peak Moments ===== | ||
MagicPlot can integrate data on selected intervals and calculate peak moments (x mean, variance, skewness, kurtosis). Spectrum line is treated as probability distribution curve: //x// values are treated as ' | MagicPlot can integrate data on selected intervals and calculate peak moments (x mean, variance, skewness, kurtosis). Spectrum line is treated as probability distribution curve: //x// values are treated as ' | ||
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^ Property | ^ Property | ||
| //n// | The number of non-NaN (x,y) points | | //n// | The number of non-NaN (x,y) points | ||
- | | X Mean | < | + | | Y Sum (normalization) | <m>s = sum{j}{}{y_j}</ |
- | | [[wp> | + | | X Mean (first moment) |
+ | | 2, 3, 4< | ||
MagicPlot uses the following formulas to calculate intervals statistics: | MagicPlot uses the following formulas to calculate intervals statistics: | ||
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| Skewness | < | | Skewness | < | ||
| Kurtosis | < | | Kurtosis | < | ||
- | | Y Sum | <m>s = sum{j}{}{a_j}</ | ||
===== See Also ===== | ===== See Also ===== |