change a numeric column to binary?
Question:
My problem is the following:
Create a binary variable in which:
=1 indicates that the house was sold for over $200,000
=0 indicates that the house was sold for less than or equal to $200,000
sac.loc[sac["price"]> 200000]= 1
sac.loc[sac["price"]<= 200000]= 0
It changes all the values to 0 and I don’t know how to make that change.
Answers:
You are overwriting the whole row, thus sac["price"] becomes 1 where was > 200000 and will be considered <200000 in the next step.
Use:
sac['col'] = sac["price"].gt(200000).astype(int)
Where 'col' is the name of the column in which you want to assign the "boolean" value.
My problem is the following:
Create a binary variable in which:
=1 indicates that the house was sold for over $200,000
=0 indicates that the house was sold for less than or equal to $200,000
sac.loc[sac["price"]> 200000]= 1
sac.loc[sac["price"]<= 200000]= 0
It changes all the values to 0 and I don’t know how to make that change.
You are overwriting the whole row, thus sac["price"] becomes 1 where was > 200000 and will be considered <200000 in the next step.
Use:
sac['col'] = sac["price"].gt(200000).astype(int)
Where 'col' is the name of the column in which you want to assign the "boolean" value.