how to replace itrerows function in pandas dataframe Answer You don’t show any sample data, but it seems you could use Assuming image_folder is a string
Tag: pandas
How to annotate each segment of a stacked bar chart
I’ve been trying to annotate each sub-amount of a stacked bar chart with its values like the picture shown above (values not accurate, just an example). Data frame that I used: The linked post is somewhat similar to my question but I do not understand the code given in that answer nor were there any exp…
Calculate adjusted cost base using Python pandas ( Portfolio Analysis of Stocks Buy/Sell)
I am trying to do a portfolio analysis of my trading and trying to calculate the adjusted cost base price. I have tried almost everything but nothing seems to work. I am able to calculate the adjusted quantity but not able to get the adjusted buy price Could anyone please help? Here is the Sample trade log ra…
Python Pandas – Read csv with commented header line
I want to read and process a csv file with pandas. The file (as seen below) contains multiple header lines which are indicated by a # tag. I can import that file easily by using However, I have a lot of such files with different header names and I don’t want to name them (Time Cd Cs …) manually. A…
Pandas read_json ValueError: Protocol not known
I ran the following code a while ago and it worked but now there is the following error. How to solve it? ValueError: protocol not known. Answer As far as I could debug this issue is caused by an update of pandas. The 1.1.0 update had changed few things on the read_json function. I could make my code work whe…
Calling an attribute defined in a method from another method in data science (python)
I’m learning object oriented programing in a data science context. I want to understand what good practice is in terms of writing methods within a class that relate to one another. When I run my code: I get the following output (only part of the output is shown due to space constrains): I am happy with …
Empty dataframe when filtering
I have a dataframe that looks like this: Now I’d like to filter like this: However, I am getting an empty dataframe. What am I doing wrong here? Answer Try df1.loc[df1[‘PZAE’]==”‘HAE’”] Details : the column ‘PZAE’ contains str starting and finishing by ‘ t…
‘BACKTICK_QUOTED_STRING__AT_key’ is not defined for Pandas Querying function
Trying to get a hold of pd.query function Getting an error UndefinedVariableError: name ‘BACKTICK_QUOTED_STRING__AT_key’ is not defined for the below pandas Python code. What did I do wrong? Answer Try this : or
How to combine rows into seperate dataframe python pandas
i have the following dataset: i want to combine x y z into another dataframe like this: and i want these dataframes for each x y z value like first, second third and so on. how can i select and combine them? desired output: Answer Use GroupBy.cumcount for counter and then loop by another groupby object:
How to Generate a dataset based on mean, median, 1st & 9th decile values?
I have the following values that describe a dataset: I need to generate any datasets that will fit these values. All the examples I found require you to have the standard deviation which I don’t. How this can be done? Thanks! Answer Interesting question! Based on Scott’s suggestions I gave it a qu…