Code df['P_C_%i'%t]=0. giving error

AI & Machine learning
1

Hi,
As taken from https://blog.quantinsti.com/trading-using-machine-learning-python/, i had “ValueError: Cannot set a DataFrame with multiple columns to the single column Error_95” when running this code df[‘P_C_%i’%t]=0. Is there anything wrong with this code?

image
image957×721 75.2 KB

2

Hi,

It is difficult to recreate the error and help with the code without the previous code which you have written. Can you share the file on a publicly accesible google drive and share the link or send it to quantra@quantinsti.com to take a look further.

Meanwhile, it seems that the code is trying to assign a DataFrame with multiple columns to a single column in another DataFrame.
You could try to make it return a 1-D array by using the code as
df[‘P_C_%i’%t] = reg1.predict(X[:]).flatten()

Hope this helps.