How can we implement dropna() in the rapidminer?

Anusha

Hi All!

I have a dataset that has NAs, N/A, null, NULL, and multiple spaces in different cells. I just want to remove those particular rows.
Can anyone guide me.

Source Data:

C1                  C2                      C3                C4

12                ADNF                   NCJK               NA
34                HDDW                  CNJ                        -(single space ) 
38               CNJKD                  JIC                  N/A
78                NJDS                    NCSW            NULL
90                 CJNEK                 C JDSK          12NJDNC
08             DNCJS                      CSKJ               null
13                           -(tab space)  bdjf                ndf097

Desired Data:

C1                  C2                    C3                 C4

90                 CJNEK               C JDSK          12NJDNC

Thanks in Advance!

ceaperez

Hi @Anusha, 

Into the Select Attributes operator you have many alternatives to carry out the filtration of your dataset, for example remove the missing values, or work with regular expressions. 

Best

MartinLiebig

Hi,

First you use declare missing values to make it a missing, then you can use filter examples with 'is not missing' to remove it.

Best,

Martin