I was using pytorch and realized that for a linear layer you could pass not only 1d tensors but multidmensional tensors as long as the last dimensions matched. Multi dimensional inputs in pytorch Linear method? I tried looping over each item, but is that what pytorch does? I’m having trouble thinking ho…
Tag: python
Make a customized filter on a grouped dataframe with multiple conditions
Please find below my input/desired output : INPUT OUTPUT (desired) The goal is firstly to have one line per Id in the output. The output will be made based on a this simple statement : This is what I’ve tried so far : Do you have any suggestion/propositions, please ? Any help we be so much appreciated !…
Gams_magic does not work in Jupyter notebook and returns ModuleNotFoundError
I just wanted to use gams inside Jupyter notebook in order to use data frames of pandas in gams codes. I followed the instructions of this page to get started with the gams in Jupyter. However, I can not call gams and when I run this line I get the following error: I really do not know where is the
Remove duplicates and keep row that certain column is Yes in a pandas dataframe
I have a dataframe with duplicated values on column “ID”, like this one: I need a way to remove duplicates (by “ID”) but keep the ones that the column Primary is “Yes” (all unique values have “Yes” in that column and duplicated values have one record as “Y…
Efficiently reading small pieces from multiple h5df files?
I have a hdf5 file every day, which contains compressed data for many assets. Specifically, each h5 file contains 5000 assets, and is organized by key-value structure such as The data of each asset has the same format and size and all together I have around 1000 days of data. Now the task is to do ad-hoc anal…
regex find first occurance beginning from end of the line
I have this string How would I go on about matching from the last occurance of start to the end of the line? I tried to do this with a negative lookahead but I would always get the first occurance: (?!$)\nstart[sS]*?$ Expecting match to be characters: 164-219 Answer You can use See the regex demo. Details: (?…
Python – Reset Increment
I have a list of values in a column (A) and want to increment by 1 in column (B) until the value in A changes, however, having difficulty in my loop to reset the increment when A changes. Here is desired output: Product(A) No.(B) Apple 1 Apple 2 Apple 3 Orange 1 Orange 2 Orange 3 Orange 4 Orange 5
Clustering different sets of points with different linear relationships to each other in Python
I need to cluster groups of points with the same linear relationship, as per the code and figure below. Obviously, I wouldn’t have the points that way; I would just have the following x and y. Note the following: the points respect linear relationships with high slope, they present a slight separation f…
Power Plant – solve the problem in O(nlogn)
I had the following problem on the exam: A certain power plant needs coal to operate, so it has ordered n deliveries, and information about each delivery (number of tons) is stored in a list A. The delivered coal is stored in warehouses with consecutive numbers 0, 1, …. (Their exact number is not given)…
Matplotlib pickle error “TypeError: cannot pickle ‘kiwisolver.Solver’ object”
In my project I’m trying to embed the same matplotlib figure in two places and seem to need to make a copy, as I’m using blitting on the original, and embedding a figure in two places & closing one causes a crash issue w/ blitting an imshow in matplotlib (but not scatterplots). In order to do …