Lesson 3: Reading Gene Expression Data into R

[@MikeSaintAntoine]

Hi everyone, thanks for watching! Here's all the code from this series I'm doing on transcriptomics in R: github.com/mikesaint-antoine/Comp_Bio_Tutorials/tree/main/transcriptomics_with_r

[@johnlistorage]

where does sample appear, it is not describe before in the script. or is it part of R commands

[@KASHIFRASHEED-q4s]

Hi, I just started your tutorial and very informative even for beginners (just like me) as well. My data set has numbers in GeneID rather symbols. Can you please help in how to change GeneID numbers into Symbols. Thanks again for course.

[@MikeSaintAntoine]

Hi, sorry about the late response! Yeah that's a tricky problem with gene expression analysis. Often the datasets will give you some kind of ID number rather than the actual gene name. Is there another file somewhere in the dataset that tells you how the IDs correspond to gene names? If not, then you might need to figure out what type of IDs they are, and then you can use an R library called "org.Hs.eg.db" to convert them. For example, if the IDs look like this: ENSG00000139618, then those are called Ensembl IDs and you can convert them to gene names in R like this: library(org.Hs.eg.db) gene_names

[@syedmuhammadafzal6195]

Sir. Your videos are very comprehensive and clearly explained. Looking forward to more exciting videos in the future

[@MikeSaintAntoine]

Thank you! 🙂

[@gianmarcocastillohuaccho244]

nice, thanks you for the video

[@MikeSaintAntoine]

Thanks for watching! 🙂

[@bcj8894]

Thank you for the video

[@MikeSaintAntoine]

Thanks for watching and let me know if you have any questions! 🙂