Embedded Nul in String' Error When Importing CSV with Fread

Embedded nul in string' error when importing csv with fread

We can remove the null terminators on the command line using something like:

sed 's/\\0//g' mycsv.csv > mycsv.csv

Or as suggested by @marbel, fread allows you to pass the sed call inside the text. Such as:

fread("sed 's/\\0//g' mycsv.csv")

Error with fread in R--embedded nul in string: '\0'

The csv files were populated with ^@ and they were placed within the blank values, somehow they couldn't be searched or replaced via sed commands to solve the problem, I followed the following solution.

In linux, follow to the file directory and use vim command such as,

vim filename.csv

:%s/CTRL+2//g

ESC #TO SWITCH FROM INSERT MODE

:wq # TO SAVE THE FILE

I had to do this manually for every file. However, I still looking for a way to automate this either within R or using from BASH script.

embedded nul in string in númeric data

In my case, the problem with fread was the size of my file (2.7G). Using R version 3.6.0, fread was unable to read the whole file. The solution was to split my file in two smaller files. Then I performed an rbind to merge the two files, after that everything worked normally.

Beginner trying to read a CSV with R: Embedded nul in string

This has nothing to do with your csv file. The error message states that you have embedded a nul char in the file name: \0 denotes ASCII byte == 0, which is forbidden in an R string (internally, it denotes the end of a string).

Perhaps you meant "\\0Laplacian1Entropy.csv" or "/0Laplacian1Entropy.csv". Anyway, if you wish to include a backslash in a string, you must escape it with... a backslash.

How to convert a string so as to prevent Embedded nul in string error

We can use

c(65:68, 0, 70) %>%
    as.raw %>% 
    setdiff('00') %>%
   rawToChar

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