How can I incorporate additional dosing information into my R data frame by adding rows?

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You can add additional dosing information to your R data frame by adding rows with the new dosing information using the rbind() function.

For example, if you have a data frame called my_df with the following columns:

patient_id | drug_name | dose
------------------------------
1          | Drug A    | 100
2          | Drug B    | 50
3          | Drug A    | 200

And you want to add a new row with dosing information for patient 1:

patient_id | drug_name | dose
------------------------------
1          | Drug A    | 100
2          | Drug B    | 50
3          | Drug A    | 200
1          | Drug A    | 150

You can create a new data frame with the additional row using the following code:

new_row <- data.frame(patient_id = 1, drug_name = "Drug A", dose = 150)
new_df <- rbind(my_df, new_row)

The rbind() function combines rows from two data frames, and in this case it is combining the my_df data frame with the new row created in new_row. The resulting data frame is assigned to a new variable called new_df.