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If it's a single author, use I. I is for singular, and if you are doing the research and all that stuff by yourself, then take credit, unless someone's helped you. If you use "we", then there must ...
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#4: Attribution notice removed
Source: https://writers.stackexchange.com/a/32246 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#3: Attribution notice added
Source: https://writers.stackexchange.com/a/32246 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#2: Initial revision
If it's a single author, use I. I is for singular, and if you are doing the research and all that stuff by yourself, then take credit, unless someone's helped you. If you use "we", then there must be more people other than you doing the research, or someone has been helping you. Check [here](https://hsm.stackexchange.com/questions/2002/how-did-royal-we-become-a-standard-of-scientific-writing) for more information.