Add map_variables and -99999 nan value to read_crn#1368
Add map_variables and -99999 nan value to read_crn#1368kandersolar merged 21 commits intopvlib:masterfrom
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Nice that this isn't a breaking change. Still needs a whatsnew entry though
Co-authored-by: Kevin Anderson <57452607+kanderso-nrel@users.noreply.github.com>
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Thanks @AdamRJensen! A couple of minor things below. Can you also update the PR title?
| try: | ||
| # to_datetime(utc=True) does not work in older versions of pandas | ||
| data = data.tz_localize('UTC') | ||
| except TypeError: | ||
| pass |
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Too bad I neglected to indicate the versions that needed this. I think the tests are comprehensive enough that we can safely remove this if they still pass.
AdamRJensen
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pvlib/iotools/crn.py
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| VARIABLE_MAP = { | ||
| CRN_VARIABLE_MAP = { |
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surfrad.py has VARIABLE_MAP while midc.py has MIDC_VARIABLE_MAP, so either the original or the change is consistent with existing code. I prefer just VARIABLE_MAP since it's simple and already specific to the module. Open to other ideas.
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Ok, I can get behind consistently using VARIABLE_MAP - though I have to admit that I might have done a similar change in previous PRs.
| # set dtypes here because dtype kwarg not supported in read_fwf until 0.20 | ||
| data = data.astype(dict(zip(HEADERS, DTYPES))) |
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pvlib now requires pandas > 0.22 so perhaps we can remove this line in favor of the dtype kwarg
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I do not believe this is possible as there are rows with all nans - and you cannot set the column dtype to int if the column contains nans. In the current version, the dtypes are set after the all nan rows are removed.
I get the following error when i set dtype=dict(zip(HEADERS, DTYPES)) with read_fwf:
ValueError: Unable to convert column WBANNO to type int64
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Objections to merging this once the conflict is resolved? I think it's time for a 0.9.1. |
No objection. Definitely time for 0.9.1 |
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Thanks @AdamRJensen! |
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read_crnreturns -99999 instead ofNaN#1372[ ] Updates entries todocs/sphinx/source/api.rstfor API changes.docs/sphinx/source/whatsnewfor all changes. Includes link to the GitHub Issue with:issue:`num`or this Pull Request with:pull:`num`. Includes contributor name and/or GitHub username (link with:ghuser:`user`).I propose adding an argument
map_variablesto theread_crnfunction, which is the standard pattern for the iotools. Also, -99999 has been added to the list of nan values as per issue #1372.