Remove Rows From Data Frame where a Row matches a String

Question

I do I remove all rows in a dataframe where a certain row meets a string match criteria   For example   A B C 4 3 Foo 2 3 Bar 7 5 Zap   How would I return a dataframe that excludes all rows where C   Foo   A B C 2 3 Bar 7 5 Zap

User · Answer

I had a column A  in a data frame with 3 values in it  yes  no  unknown   I wanted to filter only those rows  which had a value  yes  for which this is the code  hope this will help you guys as well  --   df  lt - df     df A   no    amp    df A   unknown

User · Answer

Just use the    with the negation  symbol      If dtfm is the name of your data frame   dtfm  dtfm C     Foo       Or  to move the negation in the comparison   dtfm dtfm C     Foo       Or  even shorter using subset     subset dtfm  C   Foo

User · Answer

if you wish to using dplyr  for to remove row  quot Foo quot   df   gt    filter  C   quot Foo quot

User · Answer

You can use the dplyr package to easily remove those particular rows   library dplyr  df  lt - filter df  C     Foo

[r] Remove Rows From Data Frame where a Row matches a String

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