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best lecture

wheres part two

very nice and interesting,keep it up

You did it river boy!

Thanks alot

Thank you so much.we would appreciate if you could post video on survival analysis using R

I really enjoyed it, Dr. Thank you.

Dr Shambel, Thank you. It was interesting

shukran

min largih ante sew ager bante tikuraaaaa

how to download

Voice and pronunciation is not clear.

How do we handle under-dispersion by Poisson?

it is very interesting lecture.

thank you very much Doctor!

Thank you for sharing this vid. I have learned a lot from it! Keep it up Is it possible to remove those covariates that have p values < 0.05 and run Schoenfeld residual?

the best way of lecturing

Thank you Dr!

betam gobez gebitognali

batam tiru naw Dr batam enmasginalan

Dr shanbel wedajo iam always with you mentally Even we arent physically togather.

Dear Dr.Lemma please post more lectures about mixed. and frailty models. Thanks for this one !

Thanks this should be encouraged because given by our lectures,which I have not seen elsewhere in you tube

pls Dr. give a hint how to analyses in R program of the following data. Group 1 Group 2 t (weeks) log WBC t (weeks) log WBC 6 2.31 1 2.80 6 4.06 1 5.00 6 3.28 2 4.91 7 4.43 2 4.48 10 2.96 3 4.01 13 2.88 4 4.36 16 3.60 4 2.42 22 2.32 5 3.49 23 2.57 5 3.97 6 3.20+ 8 3.52 9 2.80+ 8 3.05 10 2.70+ 8 2.32 11 2.60+ 8 3.26 17 2.16+ 11 3.49 19 2.05+ 11 2.12 20 2.01+ 12 1.50 25 1.78+ 12 3.06 32 2.20+ 15 2.30 32 2.53+ 17 2.95 34 1.47+ 22 2.73 35 1.45+ 23 1.97 Consider the remission example data (Freireich et al., Blood, 1963) in an extended form. The data called ‘remission’ gives the remission survival times for the two groups with additional information about white blood cell count for each person studied. Each person’s log white blood cell count is given next to that person’s survival time. The epidemiologic reason for adding log WBC to the data set is that this variable is usually considered an important predictor of survival in leukaemia patients, the higher the WBC, the worse the prognosis. Thus, any comparison of the effects of two treatment groups needs to consider the possible confounding effect of such a variable. All your answers must be accompanied by interpretations/comments. 1) Estimate average survival time (ignoring censoring) 2) Estimate average hazard rate (ignoring censoring) 3) Estimate survivor curve 4) Estimate Median survival time 5) Compare survival experience of two groups using curve and test the significance

Nice lecture !is the next part available ?

Thank you for your brief explanation!

Can we get logestic regression

Interesting

Thank you so much. interesting

It's very nice lecture!!!

very nice lecturing. thank you

I have one question Dr. How can the middle category 15-49 be the reference category?

Thank you Dr. I am from Wollo University, you have helped me a lot. Thank you for posting this helpfull video

I am a health science researcher with a qualitative research affiliation, I am impressed with the explanation you provided, we get an excellent instructor (you) in appropriate time for Ethiopia, really you mastered the concept !!!!!!

I am a health science researcher with a qualitative research affiliation, i impressed with the explanation

Thank You Dr.Shambel Happy to be your student

It really important lecture derar techer

l am interesting to follow you

Dear Dr Lemma many thanks, I have learnt from you

can you explain about multilevel mixed effect Poisson regression?

Tnx my teacher

I appreciate your upload videos. My study area is the lower atmosphere. the QBO, ENSO, IOD, SSN, aerosel index all these parameters are affect the tropopause. I have radiosonde temperature data in each km. my model equestion is h= bo + b1(QBO) +b2ENSO + b3IOD +b4SSN +b5AID. how can I determine bo,b1,b2,b3,b4 and b5? Thank you.

𝐩𝐫𝐨𝐦𝐨𝐬𝐦 ✔️

lu

Only works if it's scrambled the opposite way.

best lecture with friendly approach

Only works if you scrambled it like this

Dont work

Doesn’t work

Hello dear instructor? Do you know that how I'm very interesting about your teaching ability?