I am trying to filter a dataframe using the isin() function by passing in a list and comparing with a dataframe column that also contains lists. This is an extension of the question below: How to implement ‘in’ and ‘not in’ for Pandas dataframe For example, instead of having one countr…
Tag: pandas
How to collect and move data from a link to pandas Dataframe using request
I have a link as below: https://beta.nseindia.com/api/snapshot-derivatives-equity?index=futures I want to collect and move table data from a link to pandas Dataframe using request Answer Use requests.get first and then json.json_normalize:
Pandas read_pickle from s3 bucket
I am working on a Jupyter notebook from AWS EMR. I am able to do this: pd.read_csv(“s3:\mypath\xyz.csv’). However, if I try to open a pickle file like this, pd.read_pickle(“s3:\mypath\xyz.pkl”) I am getting this error: However, I can see both xyz.csv and xyz.pkl in the same path! Can a…
Python: concatenate pandas multiindex
I need to generate a pd.DataFrame with columns being composed by a list and a Multiindex object, and I need to do it before filling the final dataframe with data. Say the columns are [‘one’, ‘two’] and the multiindex obtained from from_product: I would like to get a list of columns whi…
Fast way to cyclically wrap values in pandas dataframe
In words: I have a data frame that consists of values over a day, for multiple days per Userid. I’d like to shift all of certain people’s data by 1 period, so that the first value in their first column is a nan, and then everything is cyclically offset, with the last value truncated or lost to spa…
How can I check if a string in a column is a sub-string in another column using dataframe and pandas
I am working on a fake news detector, I want to check if the content of the news headline [TITLE] is inside the content of the news [TEXT]. If the result is True it should return 1 and if it’s False it should return 0. the return value forms a new column This work is for a research publication. I
Display pandas dataframe using custom style inside function in IPython
In a jupyter notebook, I have a function which prepares the input features and targets matrices for a tensorflow model. Inside this function, I would like to display a correlation matrix with a background gradient to better see the strongly correlated features. This answer shows how to do that exactly how I w…
How to merge a list composed of many variables and a DataFrame in a single Python Dataframe?
I’ve created a list named “list_data” which contains variables from many files. I also have a dataframe named “observation_data”. I’m trying to merge these 2 files with the key “time”, but nothing to do, all my tentatives fail. Here is my code and my results And…
How to Extract Month Name and Year from Date column of DataFrame
I have the following DF I want to extract the month name and year in a simple way in the following format: I have used the df.Date.dt.to_period(“M”) which return “2018-01” format. Answer Cast you date from object to actual datetime and use dt to access what you need. Visual Format with…
How to remove commas from ALL the column in pandas at once
I have a data frame where all the columns are supposed to be numbers. While reading it, some of them were read with commas. I know a single column can be fixed by However, this works only for series objects and not for entire data frame. Is there an elegant way to apply it to entire data frame since every