Workshop - not able to detect na in train data set and

@jatin_raina wrote:

using r windows 10 Version 1.0.136 – © 2009-2016 RStudio, Inc.
here is the dataset train_gbW7HTd.csv (3.1 MB)

as i try to get na it shows the following results and i dont know what wrong is it since its the same code mentioned in workshop and i suppose there must be error in code mentioned in workshop so please help

total observation in train data set are only 32561

table(is.na(train))

FALSE
390732

colSums(is.na(test))
ID Age Workclass Education Marital.Status Occupation Relationship Race Sex Hours.Per.Week Native.Country
0 0 0 0 0 0 0 0 0 0 0

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