Ben Chuanlong Du's Blog

It is never too late to learn.

Tips on Investing in Bonds

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

  • US Treasury Bonds (long-term)
  • Treasury Notes (middle-term)
  • Treasury Bills (T-Bills) (short-term)
  • Treasury TIPS
  • US Treasury Savings Bonds
    • EE Bonds
    • I Bonds (Inflation-linked Bonds)

It is suggested that you invest in ETF …

Property Line

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Parcel view to check property line.

https://www.kingcounty.gov/operations/GIS/Maps.aspx/

Tips on Fidelity

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

  1. Fidelity is a good choice for managing retirement accounts.

Cash Sweep Program

  1. Fidelity has cash sweep programs, which is supported by the concept of "core position". Core position is the default …

`ifelse` on Pandas Series

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Series.apply + Lambda Function

DataFrame.apply + Lambda Function

axis=1: apply the lambda function on each row

List Comprehension

numpy.where

numpy.where is vectorized ifelse.