check type of column in r

To check the type of a column in R, you can use the class() function. Here are the steps:

1. Identify the column you want to check the type for. If you have a data frame, you can access a column by using the $ operator followed by the column name. For example, if you have a data frame called df and you want to check the type of the column named "age", you would use df$age.

2. Use the class() function to check the type of the column. Pass the column as an argument to the class() function. For example, to check the type of the "age" column, you would use class(df$age).

3. The class() function will return the type of the column. The type will be displayed in the console. It could be a basic data type like "numeric", "character", "integer", "logical", or a more complex type like "factor", "Date", or "POSIXct".

By following these steps, you can quickly check the type of a column in R.