3. Exposing parameters
Warning
DO NOT CLOSE the terminal in-between each step.
After inspecting the mic.yml
file in-between steps, CLOSE the file.
Models may use many parameters and input files, but we may not need to expose all of them as part of our component. The goal of this step is to only expose some parameters.
How to perform this step?¶
In our Java executable, we only had one parameter to expose through the command line (the parameter p
). If you need to expose more than one parameter, you need to do so one at a time.
Note that you can use the -f
option with the path of the mic file, typically under the mic/mic.yaml
path:
$ mic pkg parameters -f mic/mic.yaml -n p -v 1350
Adding the parameter p, value 1350 and type int
-n
flag stands for parameter name
and the -v
flag stands for the default value you would like the parameter to have. In the case above, we defined a parameter p
with value 1350
. MIC detected that it was an integer.
Warning
Parameters are case sensitive: a parameter start_year
is different from START_YEAR
.
Expected result¶
If you open the mic.yaml
file, you should see that the parameter has been added. We encourage adding a description so the role of the parameter becomes clear:
parameters:
p:
default_value: 1350
type: int
description: 'Input parameter used in the model'
You can also add the parameter yourself to the mic.yaml
file directly, if you prefer.
Help command¶
root@32fee4e4d205:/tmp/mint# mic pkg parameters --help
Usage: mic pkg parameters [OPTIONS]
Add a parameter into the MIC file (mic.yaml).
- You must pass the MIC file (mic.yaml) as an argument using the (-f)
option; or run the command from the same directory as the MIC file
(mic.yaml)
Usage example:
mic pkg parameters -f <mic_file> --name PARAMETER_NAME --value
PARAMETER_VALUE
Options:
-n, --name TEXT Name of the parameter [required]
-v, --value ANY TYPE (FLOAT, INTEGER, BOOL, STRING)
Default value of the parameter [required]
-d, --description TEXT Description for parameter
-o, --overwrite Overwrite an existing parameter
-f, --mic_file FILE
--help Show this message and exit.