Handling NA in R | is.na, na.omit & na.rm Functions for Missing Values

The R code of this tutorial:

### Load data
data("airquality")

### Find missing values

### Count missing values

### Omit missing values

### Remove missing values

[careenevans]

I have been following your tutorials for a couple of days now. I want to say thank you, they are truly direct and straight to the point. I wish that you would offer consultation to students even if you decide to charge a price on it. Because sometimes one might get stuck and not know what to do.

[ezhankhan]

Directly answered what I was looking for - Thank you!
I have used 'drop_na()' as oppose to 'na.omit()' for the most part, but always good to know alternative ways of doing things.

[WaayoArag.]

Thank you for the good lesson; explained very clearly.

[shambo]

Very clear and succinct. All the info I needed clearly explained. 👍🏾

[anthonyfernandezgonzalez]

Love it, thank you one more time dude! Love the way you prepared your lessons ´cause they are really short, focus on an specific context and finally you gave us multiple solutions for an scenario, so thats the way it must be.

[mycountryfarm]

Awesome content! Very well demostrated!

[mdiqbal]

Tabulated value and calculated value in t-test normal distribution by plot in R programming

[shirinisabekova]

Thank you so much for the well-explained video. Keep on posting them please. You are doing a great job!

[jababnamgay]

Thank you so much. Easiest method to remove NAs.

[atthoriqpp]

Hello i have a question!

Should you always remove missing values in dataset (especially for public data)? Or do we need to consider the proportion of missing data, missing value type (MCAR, MAR, NMAR), and skewness of the data?

I’m really struggled with this particular issue (not the technique, but the judgement as to remove missing values or not), Please shed me a light and thanks!

[eapenirm]

Your videos are amazing and easy to understand! Thank you!!!

[arunbioinfo]

excellent joachim, perfectly explained

[francesco]

hi, i'm trying to do cov. with two groups of values, but one has NAs and R doesn't allow me to remove themwhan i do the cov, and if i rewrite the two groups without NA they are different in lenght, so cov can't be done, what i can do? ;(

[multitaskprueba]

Excellent explanation! You are a fantastic teacher!

[roshnyabraham]

Thank you so much! You have been such a good help.

[malakasamaraweera]

hi, your video demonstration is very useful. keep it up !

[sung]

when you ran na.omit(airquality) before mean(airquality$ozone) already rows with NAs were deleted, giving you a complete numeric dataset, then why mean(airquality$ozone) is returning NA again....

[lsjenny]

I am trying to use ggscatter but I have many NAs in y column and no correlation coefficient appears. Is there any way of ignoring these NAs or changing them to "0"? please help me, thank you.

[organ]

How to deal with the missing data for catergory variable, please?

[tirthanandi]

na.omit is removing the whole row. what if I do not remove the whole row? Is there any way I can plot geom_line without omitting na? The plot needs to ignore the point where there is a na?