song0089 questions

• selecting rows of which the value of the variable is equal to certain vector
• How to replicate a list a certain number of times [duplicate]
• selecting rows with specific conditions in R
• requirements.txt in python package
• Filter list of strings using list comprehension
• subsetting data to first occurrence in R
• how to debug invalid subscript type 'integer' error in R
• how to cumulatively add values in one vector in R
• Finding elements that do not overlap between two vectors
• Convert character matrix into numeric matrix

song0089 answers