You have to install package to do that... There are many you can find which serves the purpose...

library(Biostrings) - readDNAStringSet function

library(seqinr)- read.fasta function

etc....

Mohammed Hasan Nabeel Almashat

install.packages("seqinr")

library(seqinr)

After this, You can proceed with your coding.

Dear Dr. Abhijeet Singh and Mr. Sureshkumar v.

I am recording video how I installed packages. It is in Powerpoint I am attaching it. Pleas kindly check it.

Mohammed Hasan Nabeel Almashat

https://stackoverflow.com/questions/26570912/error-in-installation-a-r-package

Check this.

Sureshkumar v.

I am trying that methods they mentioned ,but not effective.

Mohammed Hasan Nabeel Almashat

Install by using command

install.packages("seqinr")

Loubna Youssar

Mohammed Hasan Nabeel Almashat has Problem package installation. See that power point. While loading library, it was showing error.

Thanks for this correction. Unfortunately this PP does not work in my computer (I guess versions incompatibilities).

Dear Mr. Sureshkumar v.

I am recording another video in PP.

Please kindly check it.

setwd(dir="C:/Users/user_name/Documents/dengue")

set

user_name = Your system user name

Ex: setwd(dir="C:/Users/Admin/Documents/dengue")

Sureshkumar v.

I do not know if I do it as you mention or not.

please check the PP.

Thanks

Mohammed Hasan Nabeel Almashat

library(seqinr)

setwd(dir = "C:/Users/Hasan Almashat/Documents/dengue/")

dengue

Sureshkumar v.

Unfortunately, It dose not work. Please check the photo I attached .

Thanks

Check file name.

Sureshkumar v.

I am trying many changes ,but I did not fix the problem.

>BiocInstaller::biocLite("Biostrings")

>library(Biostrings)

>test head(test)

Mohammed Hasan Nabeel Almashat

library(seqinr)

setwd(dir = "C:/Users/Hasan Almashat/Documents/dengue/")

dengue

Sureshkumar v.

I am very grateful to you. It's a useful way.

Thanks

Abhijeet Singh

Thank you very much