Fix tryLastValue using tryGetAt

fslaborg / Deedle

Easy to use .NET library for data and time series manipulation and for scientific programming

http://fslab.org/Deedle/

BSD 2-Clause "Simplified" License

937 stars 195 forks source link

Closed zyzhu closed 6 years ago

zyzhu commented 6 years ago

Fix #339.

Series.tryLastValue shall always return Some value or None.