how to filter data frame with conditions of two columns?
4982
How to combine multiple conditions to subset a data-frame using "OR"?
84325
Dynamically select data frame columns using $ and a character value
51774
How to filter a dictionary according to an arbitrary condition function?
151230
How to filter an array by a condition
28559
How to sort a dataframe by multiple column(s)
54240
How to make `column -t` ignore lines with specific characteristics?
157953
How to delete rows from a dataframe that contain n*NA
87873
AWK: Nested Conditional Subset of Rows
102900
VLOOKUP with multiple criteria
58090
Drop unused factor levels in a subsetted data frame
19054
Deleting specific rows from a data frame
139058
Remove columns from dataframe where some of values are NA
68780
Limit on the WHERE col IN (...) condition
152521
How to filter features in a layer?
116221
Remove columns with same value from a dataframe
147236
How to select sub-lists having at least one element that matches a pattern
31013
How to select records with maximum values in two columns?