gravity(boot)
gravity()所属R语言包:boot
Acceleration Due to Gravity
重力加速度
译者:生物统计家园网 机器人LoveR
描述----------Description----------
The gravity data frame has 81 rows and 2 columns.
gravity数据框有81行2列。
The grav data set has 26 rows and 2 columns.
grav数据集有26行2列。
Between May 1934 and July 1935, the National Bureau of Standards in Washington D.C. conducted a series of experiments to estimate the acceleration due to gravity, g, at Washington. Each experiment produced a number of replicate estimates of g using the same methodology. Although the basic method remained the same for all experiments, that of the reversible pendulum, there were changes in configuration.
1934年5月和1935年7月间,在华盛顿国家标准局进行了一系列实验,由于重力,G在华盛顿,估计加速。每个实验产生了复制,使用同样的方法估算g的数量。虽然所有实验的基本方法仍然相同的,可逆摆,有配置更改。
The gravity data frame contains the data from all eight experiments. The grav data frame contains the data from the experiments 7 and 8. The data are expressed as deviations from 980.000 in centimetres per second squared.
gravity数据框包含所有8个实验数据。 grav数据框包含7日和8日从实验数据。数据表示偏差980.000每秒平方厘米。
用法----------Usage----------
gravity
格式----------Format----------
This data frame contains the following columns:
这个数据框包含下列资料:
The deviation of the estimate from 980.000 centimetres per second squared.
980.000每秒平方厘米的偏差估计。
A factor describing from which experiment the estimate was derived.
从该实验说明一个因素,估计而得。
源----------Source----------
The data were obtained from
数据取自
Cressie, N. (1982) Playing safe with misweighted means. Journal of the American Statistical Association, 77, 754–759.
N.(1982)cressie,播放安全手段与misweighted。 [美国统计协会,77,754-759。
参考文献----------References----------
Bootstrap Methods and Their Application. Cambridge University Press.
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注:
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