Logo Questions Linux Laravel Mysql Ubuntu Git Menu
HTML CSS JAVASCRIPT SQL PYTHON PHP BOOTSTRAP JAVA JQUERY R React Kotlin
 

How can I find the index of all NA in a dataframe column?

Tags:

dataframe

r

missing-data

I have a dataframe and in a particular column I want to find the index of all NA values. How can I do it?

like image 280
Geekuna Matata Avatar asked Apr 14 '14 21:04

Geekuna Matata

People also ask

How do you find the index of a column in a data frame?

You can get the column index from the column name in Pandas using DataFrame. columns. get_loc() method.

How do I find missing values in a column in Python?

Extract rows/columns with missing values in specific columns/rows. You can use the isnull() or isna() method of pandas. DataFrame and Series to check if each element is a missing value or not. isnull() is an alias for isna() , whose usage is the same.

1 Answers

which(is.na(my.df$col.I.care.about))
like image 59
BrodieG Avatar answered Oct 21 '22 02:10

BrodieG
Sign in to Comment

Related questions

Add Regression Line ggplot for Only Certain Groups
How to adjust the tile height in geom tile?
Remove duplicated columns in matrix
Attractive 3D plot in R
Rewriting slow R function in C++ & Rcpp
ggplot2 mapping county boundries in one color and state boundries in another on the same map
create templates using ggplot2 syntax?
Use of offset in lm regression - R
Connect R and Vertica using RODBC
Remove consecutive duplicate entries
Make a boxplot without whiskers
What is the fastest way to obtain frequencies of integers in a vector?
Storing results of loop iterations in R
converting numbers to time
R ave by columns
glmer - predict with binomial data (cbind count data)
Import text file using ff package
How to produce a meaningful draftsman/correlation plot for discrete values
element as the list names and list name as the element in a list?
Imputing missing values linearly in R

Donate For Us

If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!