Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 1 year ago. Improve this question When I execute this code: I get this output: Everything is clear to me except for the second …
Use aggregate computations to obtain mean and std between two dataframes
I have two dataframes: df1 and df2. I want to use aggregates to obtain the mean and std between the s_values in both dataframes and put those results in a new dataframe called new_df in df1 = in df 2 = The result that I am trying to get would look something like this. desired output new_df = I have
messed up pip for python 2.7.16 and upgraded it to pip v 21.1.2
specs: macOs BigSur Iterm2 with ohmyzsh preinstalled with python2.7.16 & python 3.9.5 Problem : i upgraded pip without pyenv , so now both pip and pip3 refer to python 3.9.5 i made an alias for python 3.9.5 to be default in .zshrc file i also used pip to install flask Questions : Do i donwgrade pip for py…
Wrong Implementation of LinkedList
I am having trouble with the following code segment. I can’t really figure out why it doesn’t work, any help is appreciated. It’s a very very simple mistake that I do not understand: Prints 5 and it keeps printing 5 if you write u.next.next.next.val, what I want is u.val = 5 , u.next.val = 1…
Scraping etoro with python
I’m trying to use Selenium to automatically connect to my etoro account and get some figures from my portfolio. I work on Google Colab and from now, here is what I have: However, I have this error message I have tried to change and use find_element_by_class, by_xpath, etc but I couldn’t find how t…
Supplying varying number of input arguments for np.meshgrid
I have a function that uses np.meshgrid to get the matrix form of supplied co-ordinates. I have a parameter dim that determines what dimension I am working with and needs to return an array with dim dimension along axis 1. I have attached an MWE below. However my expected output is , which is obtained by repl…
Getting a single array containing several sub-arrays iteratively
I have a little question about python Numpy. What I want to do is the following: having two numpy arrays arr1 = [1,2,3] and arr2 = [3,4,5] I would like to obtain a new array arr3 = [[1,2,3],[3,4,5]], but in an iterative way. For a single instance, this is just obtained by typing arr3 = np.array([arr1,arr2]). …
Django: ‘str’ object has no attribute ‘get’
I am trying to effectively make a Reddit clone just for practice with Django and I am trying to set up my upvote/downvote system with just a simple integer(upvote adds one, downvotes subtract one) however when I hit my “upvote” or “downvote” buttons it gives me the error ‘strR…
Combining WHEN and aggregation functions
I need to convert this pyspark SQL code sample: Into a fully dataframe code without SQL expression. I tried: TypeError: condition should be a Column But obviously, it’s not working. What am I doing wrong? Any suggestion will be appreciated! Answer Use isNull to check, not is None:
Pandas: Reorder values in one column within the groups that are created based on another column
My data is already sorted by groups based on one column. And within each group I am trying to reorder the values in another column. The below example illustrates what I mean: Currently my data looks like this, its sorted by the carrier name. The 3rd column shows what type of products they’re holding. Ho…