When I run complete(), I am getting the an error- Error in (function (classes, fdef, mtable)

Question

I have a dataset which looks like this(A-J are column names)

A   B   C   D   E   F   G   H   I   J
1   2   2   3   2   1   1   1   1
2   1   1   1   1   1   1   1   1   1
2   1   2   2   2   2   2   2   1   1
2   1   2   1   1   1   1   1   1   1
2   1       3   3   3   2   2   2   2
2   1   3   2   2   3   1   1   1   1
    1   3   2   1   2   2   2   1   2
2   1   2   2   2   2   2   2   1   1
1   2   2   2   2   1   1   1   1
2   1   2   1   1   1   2   1   1   1
2   1   1   1   1   1   2   2   1   1
2   1   2   1   1   1   1   1   1   2
2   1   1   1           1   1   1   1
2   1   3   3   3   3   1   1   1   2
    1   2   2   1   2   1   1   1   1
    1   2   2   2   2   2   2   1   1
2   2   4   1   1   1   2   2   1   1
1   1   3   3   3   3                
2   1   3   3   1   2   2   2   2   3

I am getting the below error-

Error in (function (classes, fdef, mtable)  : unable to find an inherited method for function ‘complete’ for signature ‘"mids", "numeric"’

My data has lot of NULL values and I am trying to impute the data using below code-

imp_data<-mice(data = data_NA, m = 5, method = "rf", maxit = 5, seed = 500)

I get the error when I run the code-

complete(imp_data,1)

Please suggest where I am doing wrong

When asking for help, you should include a simple [reproducible example](https://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example) with sample input and desired output that can be used to test and verify possible solutions. — MrFlick, Apr 02 '18 at 14:12
I know the problem. You got some blank data which is causing problem. Let me add the modified data. — MKR, Apr 02 '18 at 15:15
@MKR Do you mean to say that I have blank data after imputation? How do I remove that? — Deepa Dongarwar, Apr 02 '18 at 15:20
if you can share `dput(data_NA)` then may be I can suggest a way to grammatically correct it. — MKR, Apr 02 '18 at 15:25

MKR · Accepted Answer · 2018-04-02T18:16:02.567

It seems that NA values are not properly assigned in the data_NA data.frame which is causing the problem.

The modified data (with NA) and transforming it using mice as it worked for me:

library(mice)

imp_data <- mice(data = data_NA, m = 5, method = "rf", maxit = 5, seed = 500)
complete(imp_data, 1)

EDITED: The error seen by OP was resolved by changing the call as:

mice::complete(imp_data, 1)

May be the mice::complete was masked by some function other package.

#Result
# A B C D E F G H I J
# 1  1 2 2 3 2 1 1 1 1 2
# 2  2 1 1 1 1 1 1 1 1 1
# 3  2 1 2 2 2 2 2 2 1 1
# 4  2 1 2 1 1 1 1 1 1 1
# 5  2 1 1 3 3 3 2 2 2 2
# 6  2 1 3 2 2 3 1 1 1 1
# 7  1 3 2 1 2 2 2 1 2 1
# 8  2 1 2 2 2 2 2 2 1 1
# 9  1 2 2 2 2 1 1 1 1 1
# 10 2 1 2 1 1 1 2 1 1 1
# 11 2 1 1 1 1 1 2 2 1 1
# 12 2 1 2 1 1 1 1 1 1 2
# 13 2 1 1 1 1 1 1 1 1 1
# 14 2 1 3 3 3 3 1 1 1 2
# 15 1 2 2 1 2 1 1 1 1 1
# 16 1 2 2 2 2 2 2 1 1 1
# 17 2 2 4 1 1 1 2 2 1 1
# 18 1 1 3 3 3 3 2 1 2 1
# 19 2 1 3 3 1 2 2 2 2 3
#

Data

data_NA<- read.table(text = 
"A   B   C   D   E   F   G   H   I   J
1   2   2   3   2   1   1   1   1    NA
2   1   1   1   1   1   1   1   1   1
2   1   2   2   2   2   2   2   1   1
2   1   2   1   1   1   1   1   1   1
2   1   NA    3   3   3   2   2   2   2
2   1   3   2   2   3   1   1   1   1
1   3   2   1   2   2   2   1   2   NA
2   1   2   2   2   2   2   2   1   1
1   2   2   2   2   1   1   1   1   NA
2   1   2   1   1   1   2   1   1   1
2   1   1   1   1   1   2   2   1   1
2   1   2   1   1   1   1   1   1   2
2   1   1   1   NA  NA  1   1   1   1
2   1   3   3   3   3   1   1   1   2
1   2   2   1   2   1   1   1   1   NA
1   2   2   2   2   2   2   1   1   NA
2   2   4   1   1   1   2   2   1   1
1   1   3   3   3   3   NA  NA  NA  NA             
2   1   3   3   1   2   2   2   2   3",header = TRUE)

I tried doing this and I got the below error- Error in (function (classes, fdef, mtable) : unable to find an inherited method for function ‘complete’ for signature ‘"mids", "numeric"’ — Deepa Dongarwar, Apr 02 '18 at 15:54
@DeepaDongarwar I dont see any error mentioned by you? Is there any new error? — MKR, Apr 02 '18 at 15:55
@DeepaDongarwar Call `library(mice)` again and then run it. Or may be call as `mice::complete()` — MKR, Apr 02 '18 at 15:58

When I run complete(), I am getting the an error- Error in (function (classes, fdef, mtable)

1 Answers1