Top "Na" questions

NA is a missing value indicator (Not Available) in the R language.

Dealing with TRUE, FALSE, NA and NaN

Here is a vector a <- c(TRUE, FALSE, FALSE, NA, FALSE, TRUE, NA, FALSE, TRUE) I'd like a …

r boolean logical-operators na r-faq
What's the best way to replace missing values with NA when reading in a .csv?

I have a .csv dataset with many missing values, and I'd like R to recognize them all the same way (…

r csv na
specifying "skip NA" when calculating mean of the column in a data frame created by Pandas

I am learning Pandas package by replicating the outing from some of the R vignettes. Now I am using the …

python r pandas na
Locate index of rows in a dataframe that have the value of NA

Suppose that we have the following data frame: > dataset1 x 1 1 2 2 3 3 4 NA 5 5 I want to come up with a R …

r dataframe na
Replace NA in column with value in adjacent column

This question is related to a post with a similar title (replace NA in an R vector with adjacent values). …

r replace missing-data na
Getting "NA" when I run a standard deviation

Quick question. I read my csv file into the variable data. It has a column label var, which has numerical …

r statistics na stdev
Complete.obs of cor() function

I am establishing a correlation matrix for my data, which looks like this df <- structure(list(V1 = c(56, 123, 546, 26, 62, 6, …

r matrix correlation na
Replace <NA> in a factor column

I want to replace <NA> values in a factors column with a valid value. But I can not …

r dataframe replace na
Replace NA with Zero in dplyr without using list()

In dplyr I can replace NA with 0 using the following code. The issue is this inserts a list into my …

r dplyr na
Replace all NA with FALSE in selected columns in R

I have a question similar to this one, but my dataset is a bit bigger: 50 columns with 1 column as UID …

r dataframe na missing-data imputation