Get Sign of a column in R

In Order to get sign of a column we will be using using sign() function. Let’s see how to extract the sign of a column in R with an example.

Let’s first create the dataframe.

### Create Data Frame
df1 = data.frame (state =c('Arizona','California','Texas','Las Vegas','Indiana','Alaska','unknown'),Hindex =c(62,-47,55,-74,31,-77,0))

df1

So the resultant dataframe will be

Get sign of a column in R 1

 

Get sign of a column in R

Sign function is used to extract the sign of a column. As shown below

# Get sign of a column

df1$sign_hindex <- sign (df1$Hindex)  
df1

so the resultant sign value is stored in another column named “sign_hindex”. So the resultant dataframe will be

Get sign of a column in R 1