This is a problem of the missing number in python. I am getting this error. can anybody solve it? Answer you need put the input outside class,and assign it when you create instance by Obj = Missing(arr,n) code: result:
Search multi-string in pandas column
I have a pandas dataframe which looks like this: Now I want to search col2 on a given condition and select rows accordingly. For example: Answer You can split values and compare with sets by issubset in Series.map:
regex matches string despite negative lookahead
I want to match the first 2 words in a string, except when the second one is “feat”, then I just want to match the first word. My plan: (w+(?: w+))(?!feat) does not work. “feat” gets matched everytime. I tried variations of the same, but to no avail. Here’s an example string: …
How to read metadata from a given URL and save it as a json file with key_value pairs?
I have defined a URL in my python codes and I need to read it and save it in a json file then save them in a list or dictionary. In my codes I read and print them. Also, I would like to know is there any issue in my codes such as post method or read key value pairs
Dataframe: shifting values over columns
I have a dataframe with some NaN values in my s_x columns. If NaN values exist in them, I want them to be in the last columns. Example: Given values in the s_x columns of [Nan, 1, Nan, 2] I want the values to shift left over the columns to result in [1, 2, NaN, NaN] Example 2: My current
Django urls.py issue, not sure what to put in ‘urlpatterns’
I’ve been following this tutorial (Django Tutorial Part 3) and I’ve stumbled across what I’m assuming is a syntax issue between the time this tutorial was written and the new Django releases. My admin page loads just fine. Code Block in Question So in the picture linked, that is the area tha…
In Altair equality condition doesn’t work
I’m trying to build a scatterplot in Altair where the color of the points is determined by a slider. In this example, I want to color in orange only the carse whose cylinders are equal to the one selected by the slider. The operator == inside the Altair condition doesn’t work. I tried different op…
Using points to Plot a Sphere in Julia
I would like to sample N points (lets say N = 10000) on a sphere. I know how to plot a 3D sphere. However, I am not sure how to use spherical coordinates for points. (below is the code I used for the sphere) Answer This will do the job:
How to merge two nested dictionaries in python, which have same keys and have array type values?
I need to merge two dictionaries d1 and d2, where: I need dictionary d3 after merging d1 and d2, such that, 1st value of key:0 of d1 is merged with 1st value of key:0 of d2. Expecting d3 as: I have tried multiple approaches, but nothing seems to work appropriately. Any help is much appreciated! Thanks! Answer…
Using a for loop index in .loc to access a rolling slice of a dataframe?
I want to create rolling slices of a master dataframe. I’m trying to measure the difference in outcomes over rolling periods. The master dataframe has 120 years of data and I want to create rolling slices of 10 years of a column(s), i.e slice one goes from year 1 to 10, slice 2 goes from year 2 to 11, e…