R - Classification Trees (part 2 using rpart)

Classification Trees are part of the CART family of technique for prediction. Here we use the package rpart, with its CART algorithms, in R to learn a classification tree model on the 'iris' data set available in all R installations. In this video I also compare our results from rpart to our results from C5.0 in the previous classification tree tutorial video called "

[@Prism684]

Great video tutorial. Standalone videos, doesn't require to refer other videos and is good for novice as well as expert on R. Thanks for upload.

[@rdjalayer]

Prism you are very kind. Thanks for your comment.

[@demanibarry8825]

Airbnb l ghvgofhhgffghgfxvn
.
.vffgfcfvvgfy is huge for you and I'll be there in fdrkyhyggffg he go GB my good n be sydhcifhcifjcudhfu tf up f kjv vff to hbfv gg gc do c he b FG FG you

[@notperfectindividuals]

I have watched all your videos on Machine Learning and found them extremely useful. You are definitely one of those who can explain tricky concepts in a much simple way. Great job. Will look forward to more videos on topics such as Random Forests, R Caret package etc.. I am in the process of learning these, but not able to find good tutorial.. may be i am so much used to your way of explanations, .. finding it little difficult to digest others' teaching styles.. :)
One again thanks for the great content.. Awesome.

[@lexmurden5221]

Ditto! Also, I too would really like a Jalayer Academy video about the R Caret package.

[@Wizhka]

Vi ambos videos (using C5.0 and rpart()). son complementarios y muy bien presentados. Gracias Jalayer.

[@hamzazwairy7075]

YOU ARE A LIFE SAVIOR SIR

[@diegofavoretto]

Great step-to-step explanation!

[@tradingtraveller05]

Thanks for explaining in easy way.

[@prasunbhattacharjee8415]

indeed very nice and well explained

[@rcruzalegui]

This is a great video thank you

[@madhumohangandra6774]

Good explanation. thanks

[@c.m.8146]

thank you so much for the tutorials !

[@karthibanp5862]

Thanks for the tutorial

[@darraghftown1]

Great video, easy to follow and very well explained. 1 question, what made you choose the Classification tree vs a Bayesian Naive vs a nearest nighbour. Thank you

[@AdrianQuevedoperfil]

thanks for the video Jalayer Academy

[@mohammedelfaramawi3028]

Thank you very much. A great video

[@123gregery]

Very informative tutorials. One note: rpart didn't use the sepal length and width atributes. Fancy that.

[@destinybradley7521]

I like this tutorial its great - I changed to type 1 for all labels tho:-)

[@louistyasi9478]

Great video, how to calculate goodness of fit criteria such as r square, adj. r square etc?

[@syedhussainhaiderzaidi7875]

Great video tutorial.I have a question that if i do not know the labels(e.g species ) of the test data then how can I know that which data_test_row have which label??

[@kalyanasundaramsp8267]

excellent

[@kristenwissmar4155]

How can you see nodes 4 and 5? The nodes are 1-3, then it skips to 6 and 7. It would be helpful to see an example of all nodes, even if they are 0%.

[@Jonas-lm4fh]

I don't understand why the nodes 4 and 5 are not used ? I notice that much

[@kalyanasundaramsp8267]

u r great

[@prasenjeetrathore]

@15:07 what do you mean by? -> to see how well this model "generalizes"

[@krystekczystek5361]

It will be good to make video with cross validation in rpart

[@michalis4409]

Very good tutorial. I have a problem i have a table with 800 rows and 19 columns let's call it data, each column represents a different variable, when i run str(data) i take as a result all the variables as factors, even the classid, what should i do in order to use the rpart command?

[@MohammedHamadii]

Thanks man.

[@richardgunner9768]

how do you input test data (in this case with no species names assigned) into the classification tree to be sorted?

[@shudharsanmuthuraj1076]

+Richard Gunner i believe not

[@weichen9329]

m3

[@weichen9329]

it's ok now. m3

[@zknolz]

thanks

[@arindamsamanta3543]

Hello,
I have installed "rpart" package in R and got the message
"package ‘rpart’ successfully unpacked and MD5 sums checked
The downloaded binary packages are in
C:\Users\Arindam\AppData\Local\Temp\RtmpGkXqnt\downloaded_packages"
But still I am getting the following error when I am tryong to use rpart function.
Error: could not find function "rpart"
Your tutorial is very nice. I appreciate your effort. Please help me to overcome this problem I am facing. Thanks a lot.

[@juanli8368]

+Arindam Samanta I think you forgot to load the library in r: library(rpart)

[@aone-ck6yq]

I am also getting same error in rpart.plot.
if I am adding library (rpart.plot) then it says there is no function with that name

[@aone-ck6yq]

help me this please

[@utkutarhan6029]

how can ı imply c50 winrar ? ı couldn do it