How to get rowSums for selected columns in R

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余生分开走 2021-01-27 19:30

I am a newbie to R and seek help to calculate sums of selected column for each row. My simple data frame is as below.

data = data.frame(location = c(\"a\",\"b\"


      
      
        
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                   谎友^
                                             
                
                
                (楼主)
            
              
              
                2021-01-27 20:02
              

            
            
                        
OK, if you want a separate dataframe:

> data.frame(X1=rowSums(data[,2:4]), X2=rowSums(data[,5:7]))

    
             
                                                        
            
            
              
                
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