arpe | ARPE is a tool to Analyse the Relationship
kandi X-RAY | arpe Summary
kandi X-RAY | arpe Summary
Whenever you have to run multiple experiments changing the values of parameters and collecting performance measurements with these distinct set of values, it is convenient to write a bash script to automate the execution. However, it can be really painful to write the same script over and over again. Also, once you are done with the script you need to collect data and analyze them. In some cases, it is convenient to find out a relationship between the "parameters" that were changed and the "measurable effects" of these parameters. Among these effects there's time consumption, CPU consumption, power consumption (whenever possible), hardware counters and whatever you can add here and measure on the target machine. These relationships may be different from what a programmer expected in the first place, or multiple simultaneous changes may interfere with one another. This repository contains ARPE (Analyzing the Relationship between Parameters and Effectors), a tool to analyze the effect of parameter changes on the run of applications.
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Top functions reviewed by kandi - BETA
- Main function .
- Read a csv file .
- Fits a model using the OLS .
- Initialize configuration .
- String representation of the command .
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QUESTION
I'm trying to modify the frequency of a pwm timer at runtime but I don't know how exactly the counter overflow is triggered described in the reference manual.
The output should be a short pulse of constant width (constant TIMx_CCRx
) with a variable frequency (TIMx_ARR
) in upcounting, edge-aligned mode (p.354 and 372 in the reference manual).
I want to be able to adjust the frequency faster than the minimum archivable output frequency should be.
Eg. the tick time (CK_CNT
) is 1 ms, the maximum time is 1000 ms and I want to be able to update the ARR value every 100 ms.
When the new ARR value is higher than the current counter register value the timer should continue counting up.
When the new ARR value is smaller than the current counter register value the timer should create a counter overflow and restart from 0.
To be able to update the auto-reload register every 100 ms I disabled ARR-preloading (ARPE=0
).
What would happen when I write a value into the ARR register smaller than the current counter register value? There is only an example for when the new ARR value is bigger than the counter value on p.356.
Would a counter overflow trigger and the timer starts from 0?
Do I have to create an update event (UEV
) manually?
Do I have to check the counter value and restart the timer manually if the new ARR value would be lower?
ANSWER
Answered 2022-Jan-18 at 14:12I didn't find anything in the reference manual but finally got to test the behaviour on actual hardware:
- Setting the ARR to a value lower than the current counter value doesn't create an interrupt/update event/etc, the timer keeps counting up
- Manually creating an update event automatically restarts the counter
- Setting the ARR to the current counter value creates an update event
I don't want to restart the counter when setting the ARR value to something higher than the counter value. The solution is to create a manual update event when the ARR value is lower than the counter value. There shouldn't be a problem with the counter reaching ARR while setting it because that automatically creates an update event.
This seems to work as expected:
QUESTION
I have two scraped strings I need convert to python JSON. edges and nodes.
...ANSWER
Answered 2021-Apr-11 at 10:58It's javascript object, so calling directly json.loads
will not work. One "hacky" way is to convert all '
to "
and quote dict keys:
QUESTION
I have a data set with column names similar to the following but with many more "messy" columns
...ANSWER
Answered 2020-Jun-25 at 16:00Use, Series.str.extract
along with the given regex
pattern to extract the column names from messy column names, then use np.where
to select columns from df.columns
and cols
, depending upon the condition where extracted columns is not NaN
:
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Install arpe
You can use arpe like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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