query: Convert subsets of a column to new dataframe rows in R
positive_passages.docid: 34433
positive_passages.text: Transpose / reshape dataframe without "timevar" from long to wide format
negative_passages.docid: 90847
negative_passages.text: Split column at delimiter in data frame
negative_passages.docid: 45771
negative_passages.text: Add (insert) a column between two columns in a data.frame
negative_passages.docid: 31368
negative_passages.text: interleave rows of matrix stored in a list in R
negative_passages.docid: 103024
negative_passages.text: Split data frame string column into multiple columns
negative_passages.docid: 88071
negative_passages.text: Convert a list to a data frame
negative_passages.docid: 157953
negative_passages.text: How to delete rows from a dataframe that contain n*NA
negative_passages.docid: 31119
negative_passages.text: Count number of rows per group and add result to original data frame
negative_passages.docid: 58050
negative_passages.text: How to pivot a dataframe?
negative_passages.docid: 16572
negative_passages.text: pandas convert some columns into rows
negative_passages.docid: 19650
negative_passages.text: Idiomatic R code for partitioning a vector by an index and performing an operation on that partition
negative_passages.docid: 61315
negative_passages.text: Concatenating a column by a group in R
negative_passages.docid: 155763
negative_passages.text: How to transform rows to columns
negative_passages.docid: 81170
negative_passages.text: How to replace NA with mean by group / subset?
negative_passages.docid: 103905
negative_passages.text: Expand grid with unknown dimension in R
negative_passages.docid: 31519
negative_passages.text: R: subsetting data frame by both certain column names (as a variable) and field values
negative_passages.docid: 92279
negative_passages.text: Reshape data from wide to long?