Quantopian Lecture Series: Kalman Filters

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  • เผยแพร่เมื่อ 20 ม.ค. 2025

ความคิดเห็น • 14

  • @WahranRai
    @WahranRai 3 ปีที่แล้ว +1

    4:45 Where is defined the function *get_pricing()*
    I tried to run the notebook and got an error

    • @DragonGiveMeFire
      @DragonGiveMeFire 2 ปีที่แล้ว

      import pandas_datareader.data as web
      x = web.DataReader ('lmt', 'yahoo', '2013-01-01', '2015-01-01')
      And after that, use "x.Close" instead of just "x".
      I had to deal with this filter, figured it out and now can say that the video is a lil bit misleading. Kalman filter does require user provided inputs that may completely change the result: observation covariance and transition covariance. Idk why they used 1 and 0.01 in the video, but try changing these values and you'll see. Commenting just to save your time.

  • @mamo2652
    @mamo2652 3 ปีที่แล้ว +5

    Hi , the links of the notebooks are not working now , could you please have a look into it

    • @tupacandeazyefan
      @tupacandeazyefan 3 ปีที่แล้ว

      +1 would be greatly appreciated

    • @DragonGiveMeFire
      @DragonGiveMeFire 2 ปีที่แล้ว +3

      I had to deal with this filter, figured it out and now can say that the video is a lil bit misleading. Kalman filter does require user provided inputs that may completely change the result: observation covariance and transition covariance. Idk why they used 1 and 0.01 in the video, but try changing these values and you'll see. Commenting just to save your time.

    • @Timothyjackzon
      @Timothyjackzon 3 หลายเดือนก่อน

      @@DragonGiveMeFire How to optimize this parametrization of R (noise covariance) and delta?

  • @officaltradingden
    @officaltradingden 3 ปีที่แล้ว

    Also, in the example given around 5:30, how far back does the Kalman filter measure data points to create its estimation?

    • @cutiee1721
      @cutiee1721 ปีที่แล้ว

      the first 20 data points of the spread

  • @alijabajramovic93
    @alijabajramovic93 2 ปีที่แล้ว

    Nice intuitive intro to Kalman filters

  • @tradingrobotresearchanddev4415
    @tradingrobotresearchanddev4415 5 ปีที่แล้ว +3

    Good explanation

  • @shakirullah5840
    @shakirullah5840 4 ปีที่แล้ว +1

    Thank you so much for the nice video. Would you pls tell us what software is used here to generate the results and graphs?

    • @ralf7131
      @ralf7131 3 ปีที่แล้ว

      It is some sort of custom jupyter notebook instance and to generate the graphs he propably used the python module matplotlib I guess

    • @lucasastorian1
      @lucasastorian1 3 ปีที่แล้ว +1

      @@ralf7131 The Kalman filter is implemented in the Python library pykalman.

  • @QihengFang
    @QihengFang ปีที่แล้ว

    nice