biohazard questions

• Force R to write scientific notations as n.nn x 10^-n with superscript
• remove all quotation marks from a data frame
• Sort data frame while keep original row id and dimension
• reading tab-delimited data without header in pandas
• How to sort a data frame by user-defined (e.g. non-alphabetic order) [duplicate]
• R: splitting a string between two characters using strsplit()
• rotate X axis labels 45 degrees on grouped bar plot R
• R - how to re-order data frame by row index number
• average between duplicated rows in R
• how to break out of only one nested loop

biohazard answers