This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision | ||
interval_statistics [Mon Jun 3 16:59:38 2013] Alexander |
interval_statistics [Thu Jan 14 17:19:58 2021] (current) Alexander |
||
---|---|---|---|
Line 1: | Line 1: | ||
- | ====== Calculating Integrals and Statistics | + | ====== Calculating Integrals and Statistics on Intervals using Fit Plot ====== |
- | 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 ' | ||
Line 22: | Line 24: | ||
^ 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: | ||
Line 33: | Line 36: | ||
| Skewness | < | | Skewness | < | ||
| Kurtosis | < | | Kurtosis | < | ||
- | | Y Sum | <m>s = sum{j}{}{a_j}</ | ||
===== See Also ===== | ===== See Also ===== |