search for: 89089

...ere with an example - Say I have two dataframes as below that are NOT equally-sized data frames (i.e., number of columns are different in each table): Table_A: Email Name Phone abc at gmail.com John Chan 0909 bcd at yahoo.com Tim Ma 89089 ...... Table_B: Email Name Sex Phone abc at gmail.com John Chan M 0909 khn at hotmail.com Rosy Kim F 7779 ..... Now, I have used - merge (Table_A, Table_B, by="Email&...

Hi, I'll coded your example into R code: Table_A <- c('abc at gmail.com', 'John Chan', '0909') Table_A <- rbind(Table_A, c('bcd at yahoo.com', 'Tim Ma', '89089')) colnames(Table_A) <- c('Email', 'Name', 'Phone') Table_A Table_B <- c('abc at gmail.com', 'John Chan', 'M', '0909') Table_B <- rbind(Table_B, c('khn at hotmail.com', 'Rosy Kim', 'F', '7779')) c...

...with an example - Say I have two dataframes as below that are not equally-sized data frames: Table_A: Email Name Phone abc at gmail.com<mailto:abc at gmail.com> John Chan 0909 bcd at yahoo.com<mailto:bcd at yahoo.com> Tim Ma 89089 ...... Table_B: Email Name Sex Phone abc at gmail.com<mailto:abc at gmail.com> John Chan M 0909 khn at hotmail.com<mailto:khn at hotmail.com> Rosy M F 7779 ..... Now, I have used -...

Hi, May I please ask how I do the following in R. Sorry - this may be trivial, but I am struggling here for this. For two dataframes (A and B), I wish to identify (based on a primary key-column present in both A & B) - 1. Which records (rows) of A did not match with B, and 2. Which records of B did not match with A ? I came across a setdt function while browsing, but when I tried