I am trying to add values to a column based on a couple of conditions. Here is the code example: For each value in the ‘Val’ column of df1, I want to add values from df2, based on the type and whether the original value was positive or negative. The expected output for this example would be altern…
How to plot histogram for below Data Frame
For example this is the DataFrame I want to plot the histogram with X axis showing the Countries and the Y axis showing the amounts on the Y axis, Is this possible. Answer For a dataframe that looks like this: You can plot the graph you want like so: This will produce the following plot: You can check more ab…
Broadcasting over two arrays with different shapes (Numpy-Python)
Suppose I have the following arrays: So an array with shape (5, 5) Now I have a second array, which is a slice of the first: An array with shape (2, 5). Now I want to subtract every vector of the first array by the vectors of the second array subsequently(excluding- in the first array- the vector of the secon…
frequency of unique values for 2d numpy array
I have a 2-dimensional numpy array of following format: now how to print the frequency of unique elements in this 2d numpy array, so that it returns count([1. 0.]) = 1 and count([0. 1.]) = 1? I know how to do this using loops, but is there any better pythonic way to do this. Answer You can use numpy.unique(),…
Merging of Three Images in Single Row And Fourth Image in Next Row Using PIL In Python
I am trying to merge multiple images and as per requirement its working as explained below. I am expecting 3 images should come in one single row and 4th image should come in next row but as per provided output for below image i am getting improper sequence of images i.e. Cat, Dog and Apple should come in one…
how to make histogram for multivariate data in python seaborn?
I have a following data I would like to have a histogram like the following but I could not do it using python. Can anyone please help me how to do it in python? Group Summer Winter Autumn Spring bacteria 20 30 40 20 virus 30 50 20 20 fungi 50 20 40 60 Answer You can transform the dataframe
Python : Use of the previous value generated from a function in the same function
I am trying to have a rolling average of all the highs of [‘RSIndex’] greater than 52, series will have NaN value if the first ref value is less than 52, but I want to have the previous iterated value of [‘high_r’] that the function has generated if any other ref value is less than 52.…
Why is flask-session in plain text?
I have a server-side session file created and I am new to web applications. I don’t understand why the session files when opened with text file has plain content inside it. I have a secret key setup and all but why is it not encrypted? And on login the file route is And on logout the route is WHen the
Pandas generate numeric sequence for groups in new column
I am working on a data frame as below, I want to create a new column with the sequence value for Column B subgroups based on Column A groups like below I tried this , but does not give me desired output Answer IIUC, I think you want something like this: Output:
my leveling bot(discord) seems to gives a error Command raised an exception: AttributeError: ‘tuple’ object has no attribute ‘find_one’
My code: Connection to the db code: Error: Command raised an exception: AttributeError: ‘tuple’ object has no attribute ‘find_one’ Answer You should change the connection to the db code to: