将lm摘要输出导出到包括NA的数据框 [英] Exporting lm summary output to dataframe including NA
本文介绍了将lm摘要输出导出到包括NA的数据框的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我想将LM输出的系数(估计，t值等)提取到数据帧.我需要将所有回归输出的所有系数存储在数据框中，因为我有949个单独的输出.问题是某些输出包含许多变量的NA.当我导出这些摘要时，它会排除NA并仅输出具有真实值的变量.
I want to extract the coefficients (estimates, tvalues, etc) of LM ouputs to a dataframe. I need to store all coefficients in a dataframe for all regression outputs, since I have 949 separate outputs. The PROBLEM is that some of the outputs include NA's for a number of variables. When I export these summaries, it excludes the NA's and only outputs the variables that have true values.
由于我需要将所有值绑定到行中，因此我想保持所有估计的结构相同(并因此包括NA)，否则列将不再与值匹配.
Since I need to bind all the values in rows, I want to maintain the same structure of all estimates (and so NA's included), otherwise the columns do not match the values anymore.
一个最小的工作示例:
Call:
lm(formula = dy ~ ., data = x)
Residuals:
Min 1Q Median 3Q Max
-0.223091 -0.036780 -0.001159 0.039722 0.216093
Coefficients: (8 not defined because of singularities)
Estimate Std. Error t value Pr(>|t|)
(Intercept) 5.240e+00 1.192e+00 4.395 1.84e-05 ***
deltalnPrice -4.385e-01 7.486e-02 -5.858 2.02e-08 ***
deltalnAdvertising NA NA NA NA
deltalnDisplay 6.526e-03 2.701e-03 2.416 0.016643 *
deltaIntrayearCycles -3.591e-03 1.899e-02 -0.189 0.850257
deltalnCompetitorPrices -1.149e+00 3.389e-01 -3.389 0.000852 ***
deltalnCompADV 3.107e-04 1.225e-03 0.254 0.800020
deltalnCompDISP -5.746e-03 3.405e-03 -1.688 0.093112 .
deltaADVxDISP NA NA NA NA
deltaADVxCYC NA NA NA NA
deltaDISPxCYC -3.156e-03 1.824e-03 -1.730 0.085186 .
deltaADVxDISPxCYC NA NA NA NA
lnPriceLag1 1.003e-01 1.060e-01 0.946 0.345190
lnAdvertisingLag1 NA NA NA NA
lnDisplayLag1 -2.517e-05 2.917e-03 -0.009 0.993125
IntrayearCyclesLag1 2.086e-03 7.750e-03 0.269 0.788068
lnCompetitorPricesLag1 -1.509e-01 1.213e-01 -1.244 0.214992
lnCompADVLag1 6.551e-04 1.331e-03 0.492 0.623267
lnCompDISPLag1 -9.989e-03 4.112e-03 -2.430 0.016044 *
ADVxDISPLag1 NA NA NA NA
ADVxCYCLag1 NA NA NA NA
DISPxCYCLag1 -1.590e-03 2.412e-03 -0.659 0.510408
ADVxDISPxCYCLag1 NA NA NA NA
yLag1 -3.964e-01 5.747e-02 -6.898 7.52e-11 ***
---
Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
Residual standard error: 0.07287 on 191 degrees of freedom
Multiple R-squared: 0.5067, Adjusted R-squared: 0.468
F-statistic: 13.08 on 15 and 191 DF, p-value: < 2.2e-16
structure(list(call = lm(formula = dy ~ ., data = x), terms = dy ~
deltalnPrice + deltalnAdvertising + deltalnDisplay + deltaIntrayearCycles +
deltalnCompetitorPrices + deltalnCompADV + deltalnCompDISP +
deltaADVxDISP + deltaADVxCYC + deltaDISPxCYC + deltaADVxDISPxCYC +
lnPriceLag1 + lnAdvertisingLag1 + lnDisplayLag1 + IntrayearCyclesLag1 +
lnCompetitorPricesLag1 + lnCompADVLag1 + lnCompDISPLag1 +
ADVxDISPLag1 + ADVxCYCLag1 + DISPxCYCLag1 + ADVxDISPxCYCLag1 +
yLag1, residuals = structure(c(0.0313162134166014, 0.00182250788959792,
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2.45285110963878e-05, 0.00318362402499968, 9.20274706942472e-05,
0.00669394653700606, -0.138987930945735, -0.000585654802581366,
-0.000101663762114469, -0.00154566623690725, 0.00162171887578938,
-1.80744637852897e-05, 3.56272913593494e-05, 0.000549382114719615,
9.53842275764575e-05, -0.000195960953420845, -0.00279329358218573,
0.0141072569138213, -9.65462417290809e-05, 9.20274706942472e-05,
0.00109523909589124, 0.00419699606459184, -8.25888589405142,
-0.214893767266193, -0.000581231736903212, 0.0287879466019947,
-0.238441469681808, -0.00218879181263994, 0.00168337288915271,
0.00209068059290048, -0.0800524598366933, 0.000147537009082643,
-0.00156052231157431, 0.174029022237292, -0.00304719425523143,
0.00669394653700606, 0.00419699606459184, 0.621917114099314
), .Dim = c(16L, 16L), .Dimnames = list(c("(Intercept)",
"deltalnPrice", "deltalnDisplay", "deltaIntrayearCycles",
"deltalnCompetitorPrices", "deltalnCompADV", "deltalnCompDISP",
"deltaDISPxCYC", "lnPriceLag1", "lnDisplayLag1", "IntrayearCyclesLag1",
"lnCompetitorPricesLag1", "lnCompADVLag1", "lnCompDISPLag1",
"DISPxCYCLag1", "yLag1"), c("(Intercept)", "deltalnPrice",
"deltalnDisplay", "deltaIntrayearCycles", "deltalnCompetitorPrices",
"deltalnCompADV", "deltalnCompDISP", "deltaDISPxCYC", "lnPriceLag1",
"lnDisplayLag1", "IntrayearCyclesLag1", "lnCompetitorPricesLag1",
"lnCompADVLag1", "lnCompDISPLag1", "DISPxCYCLag1", "yLag1"
)))), .Names = c("call", "terms", "residuals", "coefficients",
"aliased", "sigma", "df", "r.squared", "adj.r.squared", "fstatistic",
"cov.unscaled"), class = "summary.lm")
这些导出在我的环境中也是单独的对象，我编写了一个for循环以将这些值提取为数据帧:
These exports are also separate objects in my environment and I write a for loop to extract these values as dataframe:
for(X in c("0"){
ModelX <- get(paste0("C", X, "B2"))
allparamest <- ModelX$coefficients}
然后，模型X对应于我的环境中的特定模型.
Model X then corresponds to the specific model in my environment.
如果我想读取一个摘要输出，则需要使用print()函数而不是summary().对于一个特定的列表对象，我会得到:
If I want to read one summary output, I need to use the print() function instead of summary(). For one specific list object I would get this:
> print(C0B3)
Call:
lm(formula = dy ~ ., data = x)
Residuals:
Min 1Q Median 3Q Max
-0.223091 -0.036780 -0.001159 0.039722 0.216093
Coefficients: (8 not defined because of singularities)
Estimate Std. Error t value Pr(>|t|)
(Intercept) 5.240e+00 1.192e+00 4.395 1.84e-05 ***
deltalnPrice -4.385e-01 7.486e-02 -5.858 2.02e-08 ***
deltalnAdvertising NA NA NA NA
deltalnDisplay 6.526e-03 2.701e-03 2.416 0.016643 *
deltaIntrayearCycles -3.591e-03 1.899e-02 -0.189 0.850257
deltalnCompetitorPrices -1.149e+00 3.389e-01 -3.389 0.000852 ***
deltalnCompADV 3.107e-04 1.225e-03 0.254 0.800020
deltalnCompDISP -5.746e-03 3.405e-03 -1.688 0.093112 .
deltaADVxDISP NA NA NA NA
deltaADVxCYC NA NA NA NA
deltaDISPxCYC -3.156e-03 1.824e-03 -1.730 0.085186 .
deltaADVxDISPxCYC NA NA NA NA
lnPriceLag1 1.003e-01 1.060e-01 0.946 0.345190
lnAdvertisingLag1 NA NA NA NA
lnDisplayLag1 -2.517e-05 2.917e-03 -0.009 0.993125
IntrayearCyclesLag1 2.086e-03 7.750e-03 0.269 0.788068
lnCompetitorPricesLag1 -1.509e-01 1.213e-01 -1.244 0.214992
lnCompADVLag1 6.551e-04 1.331e-03 0.492 0.623267
lnCompDISPLag1 -9.989e-03 4.112e-03 -2.430 0.016044 *
ADVxDISPLag1 NA NA NA NA
ADVxCYCLag1 NA NA NA NA
DISPxCYCLag1 -1.590e-03 2.412e-03 -0.659 0.510408
ADVxDISPxCYCLag1 NA NA NA NA
yLag1 -3.964e-01 5.747e-02 -6.898 7.52e-11 ***
---
Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
Residual standard error: 0.07287 on 191 degrees of freedom
Multiple R-squared: 0.5067, Adjusted R-squared: 0.468
F-statistic: 13.08 on 15 and 191 DF, p-value: < 2.2e-16
推荐答案
以下是使用stargazer或tidy函数的两个选项.
Here are two options using the stargazer or tidy functions.
set.seed(101)
#data
dat <- data.frame(one=c(sample(1000:1239)),
two=c(sample(200:439)),
three=c(sample(600:839)),
Jan=c(rep(1,20),rep(0,220)),
Feb=c(rep(0,20),rep(1,20),rep(0,200)),
Mar=c(rep(0,40),rep(1,20),rep(0,180)),
Apr=c(rep(0,60),rep(1,20),rep(0,160)),
May=c(rep(0,80),rep(1,20),rep(0,140)),
Jun=c(rep(0,100),rep(1,20),rep(0,120)),
Jul=c(rep(0,120),rep(1,20),rep(0,100)),
Aug=c(rep(0,140),rep(1,20),rep(0,80)),
Sep=c(rep(0,160),rep(1,20),rep(0,60)),
Oct=c(rep(0,180),rep(1,20),rep(0,40)),
Nov=c(rep(0,200),rep(1,20),rep(0,20)),
Dec=c(rep(0,220),rep(1,20)))
#model
model <- lm(one ~ two + three + Jan + Feb + Mar + Apr +
May + Jun + Jul + Aug + Sep + Oct + Nov + Dec,
data=dat)
summary(model) # NA for covariate Dec
## export
# with stargazer
library(stargazer)
stargazer(model, type = "text") # includes Dec
# with broom (convert lm result to data frame)
library(broom); library(dplyr)
tidy(model, quick = TRUE) # with Dec but without se, t.val, p.val
tidy(model, quick = FALSE) # with se, t.val, p.val but without Dec
df <- left_join(tidy(model, quick = TRUE),
tidy(model, quick = FALSE),
by = c("term", "estimate")) # includes Dec, se ...
这篇关于将lm摘要输出导出到包括NA的数据框的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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