important functions in pandas in data analytics [closed] - python

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what are the most and daily used pandas function for a data scientist or a data analytics??I'm having many doubts regarding the same there are so may functions in pandas also but which top 10 or 20 are mostly used in industry.

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Pandas Data Transformation Request [closed]

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Essentially, the request is to convert the wide format to normal format (may be using pandas melt and pivot function).
I have tried using pivot.

vertical data need to be in Horizontal form in excel [closed]

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I have the below table in excel
and want to transpose like this
I trying with excel but now doing manually pls help mi with the quick solution

How can I get stock price data with a timeframe less than 1 minute? (Python) [closed]

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I am looking for a way to use stock price data within micro timeframes. (30seconds, 15seconds, 1 second, milliseconds etc.)
I tried using the yfinance library. However, they do not have timeframes that are that small.

Calculate the 3 sigma value using python [closed]

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I have one data frame in python. How can I calculate the 3sigma value for each column of my data frame using python? please help me with this.
The command you're looking for is df.std() * 3

Python data correlation [closed]

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Can anyone tell me what is the difference between the pearson correlation method and the normal corr() method? I expect it to be the same output, is that right?
no difference, if method='pearson'

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