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Homoscedasticity
| Глоссарий по эконометрике (англо-русский) |
"same scatter." a scatterplot or residual plot shows homoscedasticity if the scatter in vertical slices through the plot does not depend much on where you take the slice. c.f. heteroscedasticity.
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Гомоскедастичность, русский
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Scatterplot, английский
A scatterplot is a way to visualize bivariate data. a scatterplot is a plot of pairs of measurements on a collection of "individuals" (which need not be people). for example, suppose we record the heights and weights of a group of 100 people. the scatterplot of those data would be 100 points. each point represents one person`s height and weight. in a scatterplot of weight against height, the x-coordinate of each point would be height of one person, the y-coordinate of that point would be the weight of the same person. in a scatterplot of height against weight, the x-coordinates would be the weights and the y-coordinates would be the heights.
Heteroscedasticity, английский
"mixed scatter." a scatterplot or residual plot shows heteroscedasticity if the scatter in vertical slices through the plot depends on where you take the slice. linear regression is not usually a good idea if the data are heteroscedastic.
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Гомоскедастичность, русский
Годовой, русский
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