query: R Data Manipulation using Loop and making new column
positive_passages.docid: 5136
positive_passages.text: How to sum a variable by group
negative_passages.docid: 132276
negative_passages.text: How to sum data.frame column values?
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: 25066
negative_passages.text: Adding a new column to each element in a list of tables or data frames
negative_passages.docid: 142751
negative_passages.text: How do you remove columns from a data.frame?
negative_passages.docid: 57010
negative_passages.text: Adding data to column
negative_passages.docid: 149949
negative_passages.text: How to create multiple rows combining data sets
negative_passages.docid: 99563
negative_passages.text: How to convert a data frame column to numeric type?
negative_passages.docid: 53048
negative_passages.text: placing mean,total and max together in a table in r
negative_passages.docid: 100214
negative_passages.text: Group by multiple columns in dplyr, using string vector input
negative_passages.docid: 31119
negative_passages.text: Count number of rows per group and add result to original data frame
negative_passages.docid: 131373
negative_passages.text: converting string IDs into numbers in a multilevel analysis using R
negative_passages.docid: 136827
negative_passages.text: how to replace nth character of a string in a column in r
negative_passages.docid: 131572
negative_passages.text: Converting list of raster to a data frame using R?
negative_passages.docid: 35802
negative_passages.text: Dynamic "string" in R
negative_passages.docid: 121414
negative_passages.text: Aggregate data in R
negative_passages.docid: 61488
negative_passages.text: Moving columns within a data.frame() without retyping