Mar 13, 2023
I would use a join:
import polars as pl
df_sex = pl.LazyFrame(
{
'Sex':['female','male'],
'Sex_Value':[0,1]
}
)
q = (
pl.scan_csv('Titanic_train.csv')
.join(
df_sex, on='Sex', how='inner'
)
.select(
pl.exclude('Sex')
)
)
q.collect()
Written by Wei-Meng Lee
ACLP Certified Trainer | Blockchain, Smart Contract, Data Analytics, Machine Learning, Deep Learning, and all things tech (http://calendar.learn2develop.net).