BIG_PROJECT | homework in SCUT_SE | Machine Learning library
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QUESTION
I have a hive external partitioned table with following data structure:
...ANSWER
Answered 2021-Jun-08 at 12:06max_version
is of type org.apache.spark.sql.DataFrame
its not Double
. You have to extract value from the DataFrame.
Check below code.
QUESTION
I'm modifying a large codebase written in C. This code is designed to be compiled and ran from an arbitrary working directory. This is so configuration files can be read and output written to/from the working directory, making it easier to organize the setup and outputs of the code.
The additions I've made to this code need to read data from a few data files. I would like to place these in the same directory as the .c
file where they are read, with a directory structure as follows:
ANSWER
Answered 2019-Apr-05 at 18:29Based on our conversation in the comments, you have several alternatives, which I'll list below from, IMHO, most to least desirable.
You never specified if you were in Windows, GNU+Linux, or were doing cross-platform development, but I'm sure you can adapt the suggestions to your platform.
Multiple and Custom Config Files (Recommended)You could modify your program to look at your platform's standard location for program data and/or configuration files. For example, you could have it look for a standard config at /etc//default.conf
in GNU+Linux or %APPDATA%\\default.conf
in Windows.
If different users need to use their own personal configs, the program could also be made to accept a config file path as an argument. For example:
GNU+Linux:
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