不会的东西就用 help
(按照变量“foreign”的分类,将不同类样本的“mpg”绘制出来,两个图分上下排布) histogram mpg, discrete percent by(foreign, total) norm (按照变量“foreign”的分类,将不同类样本的“mpg”绘制出来,同时绘出样本整体的“总”直方图) 二变量图: graph twoway lfit price weight || scatter price weight (作...
Unknown break point Known break points Cumulative sum test for stability of coefficients ARCH LM test Moran's test for spatial dependence Diagnostic plots Added variable (leverage) plot Component plus residual plot Leverage vs. squared residual plot Residual vs. fitted plot Residual vs. pred...
Take a minute to appreciate this. We believe that wine output is a function of taxes, rainfall, and irrigation, but we do not know the function. We can nonetheless fit an approximation to the unknown function and explore it to gain statistical insight usingnpregress series,margins, andmargins...
T741501 NONPARAMREG: MATLAB function to estimate nonparametric regression by Shapour Mohammadi S500501 SPATDWM: Stata modules for US State and County spatial distance matrices by Yihua Calvin Yu S457129 HTE: Stata module to perform heterogeneous treatment effect analysis ...
qhapipf Module to perform analysis of quantitative traits using regression and log-linear modelling when PHASE is unknown qic Module to compute model selection criterion in GEE analyses qll Module to implement Elliott-M��ller efficient test for general persistent time variation in regression coef...
使用当前数据集中的3个变量在Stata中创建一个新的分类变量 技术标签: 萨纳我需要一些帮助来创建新变量。我觉得 egen 功能是我需要使用的功能,但我无法弄清楚。 我有3个用于癌症治疗的变量 - 放疗,化学疗法和手术 - 每位患者接受每种治疗的次数。 我想创建一个新的“治疗”变量,其中1 =放射疗法,2 =化学疗法,3...
S456939 GHK2: Stata module (enhanced Mata function) to implement the Geweke-Hajivassiliou-Keane multivariate normal simulator byDavid Roodman S456938 EVHISTPLOT: Stata module to produce event history plot byHenrik Stovring S456937 BYNOTE: Stata module to create a note with a user-specified for...
In an empirical setting this implies that 1) the unknown number of unobserved common factors has to be equal or larger than the rank of the unobserved average factor loadings; 2) cross-section averages with a zero loading can pose a problem if the number of cross-section averages is small...
production functionpanel dataproxy variablesgeneralized method of momentsIn the common case where polynomial approximations are used for unknown functions, I ... JM Wooldridge - 《Economics Letters》 被引量: 1132发表: 2009年 Heterogeneous Firms : Skilled-Labor Productivity and the Destination of Exports...