Dear R experts,
I have a data frame like this
The data frame is of 9000000 rows and 380 columns(x1~x380).
Is there any efficient way to see which rows have only 0 or 'no'? Also, I hope to compute the proportion of 0 and 'no' for each row (in the above case, I want to create a new column: 0.75 0.50 0.00 0.25). I there any way to achieve these goals in one minute?