CODEWITHSUNDEEP
rcsvread.csv
estu
estu

Reputation: 127

Error with specifying colClasses in read.csv

I have a dataset called "rating.csv". The dataset look like this :

rating: 2.97, 3, 3, 3.41, 3.5, 3.5, 4, NULL, NULL, NULL, 3.67

I am trying to specify colClasses in read.csv to speed up the reading of csv file. First I create the colClasses like this :

classes <- c("double")

Then I read the dataset with 

data <- read.csv('rating.csv', colClasses=classes,
  comment.char="", na.strings='NULL')

But I get an error with this read.csv

Error in scan(file, what, nmax, sep, dec, quote, skip, 
 nlines, na.strings,  : scan() expected 'a real', got '"3.67"'

Do you have any idea what's wrong with this code ? Or is there another way to change type of the dataset colclass besides in read.csv?

Upvotes: 1

Views: 882

Answers (1)

Isabella Bowyer
Isabella Bowyer

Reputation: 33

I think that means that your data is in string format instead of numeric/double/whatever options are available in csv format.

Upvotes: 0

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