CODEWITHSUNDEEP
r
Jeff
Jeff

Reputation: 8411

Knit error. Object not found

I have an uncleaned dataset. So, I have imported it to my R studio.Then when I run nrow(adult) in the rmarkdown file and press ctrl+Enter it works, but when i press the knit the following error appears:'

enter image description here

Upvotes: 15

Views: 71650

Answers (6)

Regis Maria O'Connor
Regis Maria O'Connor

Reputation: 43

I am rendering in word. Here's what finally got my data loaded from the default document directory. I put this in the first line of my first chunk.

load("~/filename.RData")

Upvotes: 0

arunchiri
arunchiri

Reputation: 41

If you have added eval = FALSE the earlier R code won't execute in which you have created your object.

So when you again use that object in a different chunk it will fail with object not found message.

Upvotes: 4

J Bumble
J Bumble

Reputation: 103

Another option, in the same way as the previous, but really useful in case you have a lot of diferent data

Once you have all your data generated from your R scripts, write in your "normal code" ( any of your R scripts):

save.image (file = "my_work_space.RData")

And then, in your R-Markdown script, load the image of the data saved previously and the libraries you need.

```{r , include=FALSE}
load("my_work_space.RData")
library (tidyverse)
library (skimr)
library(incidence)
```

NOTE: Make sure to save your data after any modification and before running knitr.

Upvotes: 6

jl-blancopastor
jl-blancopastor

Reputation: 783

When knitting to PDF

```{r setup}
knitr::opts_chunk$set(cache =TRUE)
```

Worked fine.

But not when knitting to Word.

Upvotes: 0

Tiziano
Tiziano

Reputation: 321

Because usually I've a lot of code that prepares the data variables effectively used in the knitr documents my workaround use two steps:

  1. In the global environment, I save all the objects on a file using save()
  2. In the knitr code I load the objects from the file using load()

Is no so elegant but is the only one that I've found.

I've also tried to access to the global environment variables using the statement get() but without success

Upvotes: 4

GGamba
GGamba

Reputation: 13680

When you knit something it gets executed in a new environment.
The object adult is in your environment at the moment, but not in the new one knit creates.

You probably did not include the code to read or load adult in the knit.

If you clear your workspace, as per @sebastian-c comment, you will see that even ctrl+enter does not work.

You have to create the adult object inside your knit. For example, if your data in from a csv add 

adult <- read.csv2('Path/to/file')

in the first chunk.

Hope this is clear enough.

Upvotes: 17

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