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使用 knitr 和 Latex 的问题

tag-icon • tag-icon r knitr
使用 knitr 和 Latex 的问题

所以我目前正在使用 R 中的 micEconCES 包进行 CES 函数估计。我想将估计的输出合并到我的 latex 文件中，但我似乎无法让它工作。这是 R 中的简化版本。我希望它看起来像这样

在此处输入图片描述

这是我在 R 中使用的代码。如果我在 R 中一步一步输入代码，那么我会得到想要的输出，但如果将其合并到 Rnw 文件中，我会收到错误消息。

\documentclass{article}
\begin{document}

#starting the R code

<<>>=

#reading in my data set from excel and changing a couple columns to 
numeric

DATA_FOR_2<- read_excel("~/Documents/DATA FOR  2.xlsx", col_types =
c("text", "text", "text","text", "text", "numeric", "numeric", 
"numeric", "numeric", "numeric", "numeric", "numeric", "numeric", 
"numeric", "numeric", "numeric", "numeric", "numeric", "numeric", 
"numeric", "numeric"))

#cutting out some unneeded rows

mydata <- DATA_FOR_2[-c(46:62), ]

#using the micEconCES code to do the Kmenta approximation

cesKmenta <- cesEst( yName = "gddp", xNames = c( "capiital", "labora" 
), data = mydata, method = "Kmenta", vrs = TRUE )

#calling summary stats

summary(cesKmenta)

#plotting the results

compPlot ( mydata$gddp, fitted( cesKmenta ), xlab = "actual values",
ylab = "fitted values" )
@

\end{document}

但是当我将此代码编译为 PDF 时，我收到错误消息：

DATA_FOR_2<- read_excel("~/Documents/DATA FOR  2.xlsx", col_types = c("text", "text", "text","text", "text", "numeric", "numeric", "numeric", "numeric", "numeric", "numeric", "numeric", "numeric", "numeric", "numeric", "numeric", "numeric", "numeric", "numeric", "numeric", "numeric"))## Error in eval(expr, envir, enclos):  konnte Funktion "readexcel"nicht finden

mydata <- DATA_FOR_2[-c(46:62), ]## Error in eval(expr, envir, enclos):  Objekt 'DATAFOR2' nicht gefunden
cesKmenta <- cesEst( yName = "gddp", xNames = c( "capiital", "labora" ), data = mydata, method = "Kmenta", vrs = TRUE )## Error in eval(expr, envir, enclos):  konnte Funktion "cesEst" nicht finden

summary(cesKmenta)## Error in summary(cesKmenta):  Objekt 'cesKmenta' nicht gefunden

compPlot ( mydata$gddp, fitted( cesKmenta ), xlab = "actual values",ylab = "fitted values" )## Error in eval(expr, envir, enclos):  konnte Funktion "compPlot"nicht finden1

我究竟做错了什么？

答案1

你可能忘记加载函数库了read_excel。第一行有一条明确的错误信息：

konnte Funktion "readexcel"nicht finden

您必须library(readxl)在文档中添加（如果是软件包名称）。您可以在%starting the R code加载文档所需的所有库后添加额外的代码块，并将其放在一个位置

<<Load library>>
library(readxl)
# Other packages
@

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