368/finding-number-missing-values-removing-missing-values-frame

I have this data-frame "Box_Category" with missing values:

ID Category Count 1 A 10 2 F 10 3 NA 13 4 B NA 5 C NA 6 NA 12 7 D 9 8 NA NA 9 C 10

There are 5312 rows in total and I would want to find out the total number of NA values in the enitre data-set and remove all those NA values.

This code gives the total number of missing values:

sum(is.na(Box_Category))

Now, you can go ahead remove all the NA values with this command:

na.omit(Box_Category)

To find number of missing values for each column.

lapply(Box_Category[-1],function(x) { length(which(is.na(x))) })

and to remove them try this.

Box_Category = Box_Category[-which(is.na(Box_Category)),]

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