advanced capstone project 1.4

Academy Support
1

https://learninghub.kx.com/forums/topic/advanced-capstone-project-1-4-2

I'm getting a "rank: Invalid rank or valence (parameter count)" when running this code for 1.4. everything seems to be fine apart from the last line ?‍♂️


``` eventData:select from event where date=2020.01.02 sensorData:select from sensor where date=2020.01.02 lap:.f1.createLapTable[eventData;sensorData]; f1DbPath:`:./f1/; lap:update `sym$sensorId from lap; .Q.dpft[f1DbPath;lap;2020.01.02;lap;sensorId]; ```
2

Hi @masmail

I believe this error is due to the way you structured your .Q.dpft function.

If you take a look at the screenshot provided you will see that this namespace only accepts 4 arguments;

  • d is a directory handle
  • p is a partition of a database
  • f is a field of the table named by t below
  • t the name (as a symbol) of a simple table whose columns are vectors or compound lists

The first two parameters are correct [f1DbPath;2020.01.02, ..] however you need to take a look at the order of your second two.

Let me know if this helps!

Thanks,

Megan