Extract Column Data in R

To extract specific data from a particular column, you can use the following method:

Suppose there is a DataFrame named df with multiple columns of data. To extract data from the column named “column_name” in the df DataFrame with a value of “specific_value,” you can use the following code:

specific_data <- df$column_name[df$column_name == "specific_value"]

In this way, data with the value “specific_value” in a column named “column_name” can be stored in specific_data.