Microbiome Discovery 7: Alpha Diversity

[@shivaa.aghdam7097]

I really appreciate your tutorials. Easy to understand for beginners, thank you.

[@adeelabbasi7375]

great videoo... very simple and explainatory

[@cindywang8852]

Very clear and concise tutorial. Easy to understand for beginners like me. Thank you!

[@gembarry8280]

I really appreciate your tutorials, nicely explained

[@Thinker-gd8ck]

Thank you for your sharing, it is easy to understand.

[@guspapini]

Really good explanations Dan. Keep it up with the good job.

[@AmirHTofangchi]

Awesome video👍🏻 Thank you!

[@benerentraut631]

Why does nobody ever use the variance of the Chao 1 estimator?

[@CLSooth]

Thanks for this awesome video series! :)

[@paulMcGlothin]

Terrific video -- very instructive!

[@marcdittmann95]

I did not really get how changes in composition happen without changes in diversity..? Can someone help?

[@holozoan]

Very clear, thank you!

[@nicolasortiz6523]

Thank you! Great lecture

[@AqleemAbbas]

Any example: I have two different soil samples. so what would be the alpha and beta diversity in this case.

[@adihirsh2410]

Can you explain what is the diffrent between OTUs and Observed OTUs?

[@monzurmorshed.]

Thank you for the lecture.

[@srijanamukhia1751]

Nice tutorial, thank you

[@AqleemAbbas]

What is the meaning of percentages in each coordiante? i.e. PC1 13 % and PC 2 4.4 %, How can we define this percentages, when we will have to write a research paper?

[@mohamedrefaat197]

As far as I know, they represent the percentage of the variance explained by each principal component.

[@AqleemAbbas]

@@mohamedrefaat197 Yeh I also know but if the percentage reduce or very low in coordinates what does it indicates

[@mahdighanbari2384]

Thank you for this informative series of presentation. Regarding the alpha diversity, do we need to include the normalized table as input?

[@hanhnguyen84]

Hi Dr. Knight, I am wondering instead of doing relatively abundance, could we normalize all the reads to the same sequence count by divide each sequence count to certain factor (for example, sample 1 got 30000 reads, sample 2 have 60000 sample 3 have 90000 then we divide the first read by 1, second by 2 and third by 3 and end up with each of them have 30000 reads) and from there we can consider the abundance we have as absolute abundance for statistic test. Thank you so much!

[@Caroline-vy1co]

Thank you!

[@AndrePegoraro2]

Very nice! Thank you

[@learnmedicalhealthsciences5618]

👍

[@nelsoncreemov]

Thank you!