Removing Outliers From a Dataset

Siobhan O'Toole

Siobhan O'Toole

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Published 2011-12-13

All Comments (21)

@RectalDesign 6 years ago

God bless you. Every piece of documentation and every guide I've read tells me "just delete the crazy values lol."
@mattadoritmo 8 years ago

Holy crap! Thank you so much for this! This just helped solve a problem I've been working on for a couple days
@menzir 8 years ago

Do you have any references I can use to cite this method in my thesis?
@DiAMONDBACK85 12 years ago

Boxplots are also very useful - from a visual standpoint - when checking for outliers :)
@martinbrestovansky7813 4 years ago

thanks Siobhan, really useful video, but what if I have outliers on both sides of the histogram? How can I set up the filter in Variable View Missing Column in this case?
@myfictionalthoughts 3 years ago

Thanks for the advice, but how do I know which ones are the actual outliers? My data is not as simple as this one in this video.
@sharist9343 5 years ago

Hey, thanks for the amazing video. Would it somehow possible to quote the techniques you used? really would like to use this in my thesis. Kind regards :)
@chunnjh94 9 years ago

Very useful video! Thanks for uploading!
@cahpintermail 9 months ago

Hi, I wonder if you can give me some references on literature in doing this deletion on outliers.. Thank you in advance.
@benotoole1990 5 years ago

trying to do this for university and we have the same surname, the universe works in weird ways
@whiteshadow59 11 years ago

thank you very nice explanation, been frustrated all day, thanks
@weihuang6207 2 years ago

Very helpful. Thank you so much!
@rsx22Z 4 years ago

How can i determine the critical value which helps delimitate the outliers. For instance your value was 3.29, but why >?
@vkunst85 8 years ago

Thank you for your video, do you perhaps know who I can cite for this method?
@MrKKrid 4 years ago

how i define PC mom column? It use mean or something ?
@novitaasastr 8 years ago

hello i want to ask, if i want to do the run test, i have to use the new data or old data that still have the outlier? *sorry for my bad english
@Brickkzz 8 years ago

Is there an automated way of removing outliers from positive and negative end? I have a data set of 120 000 cases and hundreds of outliers...
@zivleong5151 8 years ago

if i delete it~~the previous test such as normality test and compute mean need to redo?or will change automatically?
@PurpleRawr2 10 years ago

Great video. I don't understand the 'id' section though. Is this just the IV? What if I have two IV's? Thanks!
@KittyFIxX 10 years ago

i love the deleting technique :)