Understanding missing data and missing values. 5 ways to deal with missing data using R programming 

Get my FREE cheat sheets for Public Health, Epidemiology, Research Methods and Statistics (including transcripts of these lessons) here: www.learnmore365.com/courses/public-health-epidemiology-research-methods-and-statistics-resource-library

Great video. Looking forward to your videos about imputation and the MICE package. Keep’em coming!

You said, "Boom Shakalaka" LOL! Most awesome video ever.

Hello sir, this is amazing. You're a wonderful teacher. Please do more. Very many thanks from me here in Kenya

You have saved hundreds if not thousands of hours of beginning analysts time. Thanks!

11:48 - " Take care, stay well, don't do drugs, always do best, speak to you soon. Bye! " - that's a cool outro

Great video, helped me a lot cleaning some datasets in an easy way.

I'm watching halfway. I just hit subscribe. The content you put here in this video is just so well-explained! You translate codes into layman's term and have "tidily" edited your video! I love the zoom in and out effect of it and the sound effect. Not too much. Just right. Not annoying, rather impressive. Thank you for sharing your knowledge to us, Greg!

Greg, thanks for ALL your elaborate videos and the structure of the lessons. In addition, the way you explain the code methodically! Love it. I was so stressed about replacing NA with none for the variable, gender (Pt 3 of handling missing values), turns out the variable is sex. Phew

I know this video is old, but still very helpful! I love your channel, you make stats and R fun :D Thanks for making these, keep up the great work.

Best r tutorial , visuals, pace, delivery....so good!

Please do a video on imputation in R! I was working on something and I was confused as to whether my data was "missing at random" or another option so I wasn't sure how to handle imputation.

Waoo...another great video

Hello, thank you for these videos. They are very helpful. Is there a video on what program evaluation is and how that looks in the global health context?

supper video clear, thank you soo much

This is a very insightful explanation:) thank you!

You are a good teacher i like your video

Impressed!

Hi Greg love your videos! Im a medical student who is going to intercalate next year in public health which im very excited about. Ive got a choice however between MSc International public health (with a focused stream on humanitarian studies) or MSc Humanitarian studies. Im interested in the working humanitarian relief space, but im wondering if I should I keep my studies a bit broader at the moment and study the MPH. Would be interested to know what you think in terms of if one would be more advantageous in my career. thanks James

great way of yours to finally simplify stats ...thank you

Thanks for the help, really appreciate, I have exam tomorrow, and you really helped Sir.😃❤

Could you please make a video on testing MCAR and, given its assumption of multivariate normality, talk specifically about what to do with factor variables or logicals?

Greg, I am having trouble seeing the difference between changing missing data to value vs imputation. Are they not the same? Can you explain the difference. Thanks! Great lessions by the way.

Great introductory video! Thanks! :D I have a question for everyone: I'm imputing missing values for Gender in a dataframe. Out of the complete rows (no NAs) Male=61.89% and Female=the rest obviously. Is there a way I can impute the values randomly but in these proportions? It feels like there must be but I am new to R... Thanks!!

🖐 great video, thanks. But didn't work for my case. There is a char format column, in my table (14 columns * 50000 rows) with up to 7000 missing values, but na.omit() can't find them. Is it possible it's due to invisible typed "space" that na.omit() can't find them? I hope I was clear.

Dear Greg, I've been watching all you R video in your other channel " R Programming 101". Why didn't you put this R video in that channel?

I like the audio quality

Hello Greg, I have a question. I ran the following code and i want to run a regression on the adjusted dataset now. However, it takes the unadjested dataset instead of the adjusted one. Also, it creates a new dataset called ''.'' (so just a dot). This dataset is the correct adjusted one, but I cannot even use it. I am confused. library(dplyr) library(ggplot2) library(tidyverse) iabbd_8010_v1%>% select(Destination, Year, Origin, Mstock_Total, Mstock_Low, Mstock_Med, Mstock_High, Distance, Democracy_origin, Democracy_destination, GDPpc_origin, GDPpc_destination, Language, Population_origin, Population_destination, Border)%>% mutate(Mstock_Total = replace(Mstock_Total, Mstock_Total == 0, NA))%>% drop_na(Mstock_Total)%>% mutate(Mstock_Total = log(Mstock_Total))%>% mutate(Population_origin = log(Population_origin))%>% mutate(Population_destination = log(Population_destination))%>% mutate(Distance = log(Distance))%>% mutate(GDPpc_destination = log(GDPpc_destination))%>% mutate(GDPpc_origin = log(GDPpc_origin))%>% View() reg1 = lm(Mstock_Total ~ Distance + Language + Border, data = iabbd_8010_v1) --> so actually i should do data = . but it says ''.'' doesn't exist summary(reg1)

I want videos on text manipulation

if you know please upload a video for the matlab code of Multivariate imputation by Chained Equation(MICE)

Na_if( ), it is just what I am looking for.

Great vid but instead of using the "%>%" function, how could we have done it? Since we are not able to save these changes made to the original dataset using "%>%" function.

Drop_na, complete.cases worked perfectly on R studio . But when I write the same code in kaggle new data frame doesn't have any value ?? Any suggestions ??

can we replace the NA without using library?

This video has useful information. However, it didn't help me understand missing data. It helped me understand how to filter out or replace missing values with a constant. Not the same.

Why do you use pipe at the end of each command?

Why my latest R version shows that no tidyverse package 😫

Sound system is very poor

wa la

*what! "Don't do drugs"?? , youtube is one of the most addictive drugs in the world.