Відео

Hi Can you please tell us if two x axis values can be analyzed on the same roc

I just wanted to know what number I have to put in the frequency box SMH

Hi this is very useful. Is there a more programmatic way of adding the probabilities for the two tailed test? i.e the probabilities less than the cut-off p? I'm trying to do in excel for multiple tests. Thanks

from were we need to take the data

great explanation! thank you :)

THANK YOU!

Thank you so much. Your video is very useful.

Hi, this is so easy, thank you so much! I had the coordinates but didn't know how to plot the curve. One question, how can I insert the middle line in the graphic? Thank you soooooooooo much!!!

HI IS AUTOPSY RESULTS THE CONTROLS OR ?

Can we draw multiple roc curve in a single graph

Thank you very much for this very informative and detailed video it was vey helpful

You are amazing. Thank you

they always say use fisher test when sample size is small but nobody really agrees what small is exactly equal to?

Thank you very much! This was a life saver!

Thank you, clear and simple example.

Thankyou Mr. Baker!!

Hi man! Thanks a lot for this video! It helped so much. Just one question. The final result on this example, it is the two-tailed test right?

Could you please explain how did you calculate sensitivity and specificity values

You have explained everything so clearly. Thank you for making this video. I am no longer tearing my hair out in frustration 😁

fantastic sir, thank you so much sir

Thank u sir... ur work helped me a lot in my thesis work...

Great tutorial! Thank you. Is there a way to get the best accuracy cut off, not necessarily corresponding to one of the BMI values, but also in between them? For example, could the best accuracy point be 34.6, for example, and some automatic calculation bring this information?

Hi Stokes, thanks a lot for the video, it is very helpful. However I saw in another UA-cam video that says N > 20 and expected cell counts >= 5 in less than 80% of the cells (categories). I am a bit confused now. here is the link ua-cam.com/video/jwkP_ERw9Ak/v-deo.html

I'm literally sitting here crying because I'm trying to watch this video and follow along and I'm so lost... I have to submit this today and I am so confused.

It was VERY helpful!!!! Thank you very much

This is legit; I have been meaning to figure out how to easily generate that possible combinations! Thanks mate! Very useful!

thank you so much..

very helpful!! Thanks

Amazingly pedagogic! Thank you!

Hello I am having airborne dust concentrations data for >1 micron size, >3 micron, 5 micron and >10 micron size. (> means greater than) These data was taken before and during dust producing work in field study. N=5 How can i compare these before and during operations data ? It seems that there is relative percent variation in dust concentrations in atmosphere between before and during operation data. (Taking >1) micron as 100 %) Before operation: The relative percent variation of concentration with different particle size is as below. For example Concentration of >1 micron size particle is 100%. >3 micron: 80% >5 micron : 60% >10 micron: 40%. During operation: Concentration of >1 micron size particle is 100%. >3 micron: 90% >5 micron : 80% >10 micron: 70%. It seems that >10 micron particle share is increased due to that machine operation...? Which test is suitable for analysing these type similar data for discussion ? How to use statistics? Any comparison among these concentrations of different particle sizes ? thank u.

Thanks very much, you are great to share it!!!! I was needing it!

This is posted 4 years ago! Just used it now. Out of so many videos I watched, this is by far easy to understand and very insightful. Thank you!

This was amazing and so helpful thanks so much! I would highly recommend

Note: he is using confidence.t because of n < 30 otherwise you can use confidence.norm.

Very very helpful! Thank you so much for all of the details!!

Thx mate, very useful :)

Hi Stokes. Can this be applied to a 3x3 (or more) contingency table? Can we also do post-hoc tests?

It's the middle of the night and I'm writing my master thesis and doing statistical analysis. You sir just saved my life. I can't thank you enough

thank you for this tutorial, it helps me to help someone who needs this tutorial :D

LIFE SAVER THANK YOU

Thanks for the video. I just wanted to point out that the first slide has a minor error. It says the Exact Test should be used when fewer than 80% of the expected counts are less than 5. This is not correct. The Fisher Test should be used when fewer than 80% of the expected counts are more than 5. This is the same as saying that more than 20% of the expected counts are less than 5. There is also a rule of thumb that the Exact Test should be used if any of the expected counts are less than 1.0. Of course, the Fisher Exact Test can be used when the expected counts are higher than this. Anyways, I thought the video was very helpful in understanding this topic. Thanks.

Very useful!

Very helpful. Thanks a lot.

Thank you for your video, it is very helpful!

Thank you very much! Do you know how to calculate the area bellow the ROC curve using Excel?

thank you

Can u share ur data set with me so i can follow ur example correctly.... However your video is great

very useful....thankyou for the video

Thanks. It's a nice explanation.

Why is the sum, on the right observed grid, different to the one on the left..is that an error?