starsCYG(robustbase)
starsCYG()所属R语言包:robustbase
Hertzsprung-Russell Diagram Data of Star Cluster CYG OB1
CYG OB1星团的赫罗图数据
译者:生物统计家园网 机器人LoveR
描述----------Description----------
Data for the Hertzsprung-Russell Diagram of the Star Cluster CYG OB1, which contains 47 stars in the direction of Cygnus, from C.Doom. The first variable is the logarithm of the effective temperature at the surface of the star (Te) and the second one is the logarithm of its light intencity (L/L_0).
CYG OB1的星团,其中包含47星在天鹅座方向,从C.Doom的赫罗图的数据。第一个变量是在星形(Te)和第二个表面的有效温度的对数是其光intencity(L/L_0)的对数。
In the Hertzsprung-Russell diagram, which is the scatterplot of these data points, where the log temperature is plotted from left to right, two groups of points are seen:<br> the majority which tend to follow a steep band and four stars in the upper corner. In the astronomy the 43 stars are said to lie on the main sequence and the four remaining stars are called “giants” (the points 11, 20, 30, 34).
在赫罗图中,这是这些数据点,其中由左到右的log温度绘制的散点图,两组点看出:参考大多数倾向于跟随一个陡峭的频带4分右上角。在天文学的43个明星都趴在主星序,其余四个恒星被称为“巨人”(点11,20,30,34)。
用法----------Usage----------
data(starsCYG)
格式----------Format----------
A data frame with 47 observations on the following 2 variables
有47个观测数据框以下的2个变量
log.Te Logarithm of the effective temperature at the
log.Te的有效温度下,在该对数
log.light Logarithm of its light intencity (L/L_0)
log.light的对数其光intencity(L/L_0)
源----------Source----------
P. J. Rousseeuw and A. M. Leroy (1987) Robust Regression and Outlier Detection; Wiley, p.27, table 3.
PJ Rousseeuw和AM乐华(1987)稳健回归和孤立点检测; Wiley出版社,第27页,表3。
实例----------Examples----------
data(starsCYG)
plot(starsCYG)
cst <- covMcd(starsCYG)
lm.stars <- lm(log.light ~ log.Te, data = starsCYG)
summary(lm.stars)
plot(lm.stars)
lts.stars <- ltsReg(log.light ~ log.Te, data = starsCYG)
plot(lts.stars)
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注:
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