I have a dataframe with ID’s of clients and their expenses for 2014-2018. What I want is to have the mean of the expenses per ID but only the years before a certain date can be taken into account when calculating the mean value (so column ‘Date’ dictates which columns can be taken into accou…
Why does changing to `w+` mode for simultaneous reading from and writing to a file cause the read to fail?
I am writing code in Python which needs to register a user by RFID tag and write that record to a file. I managed to write a function which works perfectly fine: But I would like to optimise the code as much as possible and reduce the number of lines. Because of that, I decided to use w+ because it
ValueError: Columns must be same length as key in pandas
i have df below I need to divide df[‘Cost’] / df[‘Reve’] Below is my code I got the error ValueError: Columns must be same length as key I got the error ValueError: Wrong number of items passed 2, placement implies 1 Answer Problem is duplicated columns names, verify: You can find this…
Show question from surveygizmo survey using API Python
im using an API to get some responses from surveygizmo. It works, but it is changing the question to [question(1)], [question(2)]… I got the following answer: I need to show the question as it was made. How it is possible to do that? Answer I found the answer. api_version=’v4′ has some limit…
How to add 2D np array to front of 3D np array?
I have a 3D numpy array and I want to add a 2D np array of 0’s to the front of it. I want to add another array B so that: I’ve tried np.append(B,A) but it returns a 2D array. Answer You can do it using numpy.vstack and by reshaping your array. For instance: By the way, you can create
How do I reference “*args” in a discord bot’s code as a message for the bot to send?
This is my code: client.say(output) does not work, but I tried to do it in this form: await message.channel.send(output) However, I don’t know what to put for message as my function’s parameter is *args Is there a something else I can put as the message? Answer Firstly, you need to have a paramete…
How to update the 1st value of the sub list with another list
I want to add the 1st element of each sublist with the values of another list Output (comming): Output (want): Answer Here let me tell you what is happening in your code… In this line you made a nested list in which all the sublists are pointing to the same sublist in memory. In this line you now made y…
Generate BarGraph from DataFrame
So I have a generated a Disease_Data dataframe that has 2 columns, Location and Data (see below). I wanted to generate a bar graph like below: However, when I tried the code below, things did not work and gave an error: KeyError: ‘Location’ Please help, thank you Answer Just plot the dataframe
KeyError for multiframe tkinter?
I keep getting a KeyError and I am unsure why. I added a print statement and printed the self.frames dict to ensure that the keys existed, and it appears they do. I’m new to using classes to create multi frame apps so any insight would be helpful. The error: The dict that prints: The code where the erro…
How can I get multiple dataframes returned from a class function?
So I have made a class that takes in a ticker symbol, and it returns a dataframe with all the price information for the dates specified. here is the code below: now this works perfectly, but ideally id like to pass in a list of symbols and have it return a seperate df for each symbol. so for example, symbols