I am new to python and so I am experimenting a little bit, but I have a little problem now. I have a list of n numbers and I want to make a new list that contains only every second pair of the numbers. So basically if I have list like this then I want that the new list looks
Pandas dataframe prints row data and column names by characters and as a tuple instead as a single string
TLDR; version: This is what i’m getting when printing the dataframe: But the input (passed as variable coming from query) was the following: I have a guess that it has to do something with a while loop running, waiting for user input to do this pre-defined query. Long version I am developing a tool for …
Django filter on combination using F
I wrote the following query using the Django ORM: With this I’m trying to filter out each fixture where the prediction__value for the home is greater than 0.0 and the prediction__value of the away is greater than 0.0. Sadly my query is returning 0 records upon using .count() whereas it should return alm…
How to combine rows that have the same values in two columns (Python)?
I currently have a csv file as follows. The first part just shows the columns names. The g column values are the same for every f value. The only unique part is p. Using python, how could I combine this as follows: One thing to note is that the csv file is much larger and that some f values might
How to have a poligon in the legend
I have a chart with 4 elements: blue square,blue triangle, red square and red triangle, I’m tryng to add these 4 items to the legend. when I add a polygon patch to the legend, it is displayed as a rectangle, even though the patch is of a triangle How can I get it to work? Answer You could use line
conditional expression in one line if statment
self.values is optional parameter (List) in my class. I have the following code: This produce I know I can fix this by doing: But isn’t there a shorter way to set it? Answer You can do the following, using the fact as it the list is None or empty, it’s evaluated as false and the other operand of t…
Dask: Continue with others task if one fails
I have a simple (but large) task Graph in Dask. This is a code example Here SomeIterable is a list of dict, where each are arguments to my_function. In each iteration b depends on a, so if the task that produces a fails, b can’t be computed. But, each element of results are independent, so I expect if o…
Keras: Does model.predict() require normalized data if I train the model with normalized data?
After completing model training using Keras I am trying to use Keras’ model.predict() in order to test the model on novel inputs. When I trained the model, I normalized my training data with Scikit Learn’s MinMaxScaler(). Do I need to normalize the data as well when using model.predict()? If so, h…
Why won’t my Pygame sprite jump code work?
I am trying to make my Pygame sprite jump so I followed a tutorial and this is what it gave me. But it doesn’t work for some reason. What’s wrong with it Answer You need to set somewher isjump = True. Additionally the if isjump == False: needs an else case:
pandas how to iteratively count instances of a category by row and reset them when the other category appears?
I have a DataFrame that shows the behavior of a machine. This machine can be in two states: Production or cleaning. Hence, I have a dummy variable called “Production”, that shows 1 when the machine is producing and 0 when it is not. I would like to know the production cycles (how many hours does t…