Create an empty data frame with index from another data frame

Question

I've got a data frame df1 with multiple columns and rows. Simple example: ``` TIME T1 T2 1 10 100 2 20 200 3 30 300 ``` I'd like to create an empty data frame df2 and later on, add new columns with the calculation results. For this moment my code looks like this: ``` df1=pd.read_csv("1.txt",index_col="TIME") df2=df1.copy()[[]] #copy df1 and erase all columns ``` ...adding two new columns: ``` df2["results1"],df2["results2"]=df1["T1"]*df["T2"]*3,df1["T2"]+100 ``` Is there any better/safer/faster way to do this ? Is it possible to create an empty data frame df2 and only copy index from df1 ?

Accepted Answer

```
df2 = pd.DataFrame(index=df1.index)
```

This will create a DataFrame with no columns but just an index, and it will be the same index as in the df1.

Create an empty data frame with index from another data frame

Solution

Problem