I have a list of a list of numbers where two rows are strings, e.g. A = [[1,’5.4′,’2′],[2,’6′,’3′]] How do I convert this to a pandas dataframe, such that the 1st and 3nd columns are integers and the 2nd column is a float by pd.DataFrame(A,dtype=float) it conver…
How to stop the while loop from repeating in the output?
The while loop which asks the user for another number will NOT stop even though there is an false statement saying otherwise. In the output menu, the while loop keeps repeating. How do I make it move on to next section of my code. Answer You forgot to add an extra tab between the if/else statement. Python rel…
How to get the coefficients of the polynomial in python
I need to create a function get_polynom that will take a list of tuples (x1, y1), (x2, y2), …, (xn, yn) representing points and find the coefficients of the polynomial c0, c1, …, cn. I can’t manage to understand the task, the only tip I have is the provided part of the function: Have somebod…
How to transform a dataframe to have values of a column as new columns, grouped by other columns?
I have an Excel file as below Excel Raw File I want to plot the output by groupby Name and Fruit on the left hand side and top groupby date as shown as below. Outcome Excel I tried create the Excel file like this: but I do not know how does the QTY can split by the Date on top
How to label milliseconds axis with datetime labels in matplotlib
I’ve got a sort of timeline plot. I’m drawing rectangles all over it, which is easy to do when time is in milliseconds. But then the x axis labels come out numerical, and I’d rather they be dates. I can convert my timestamps with df[‘timestamp’] = pandas.to_datetime(df[‘tim…
How to apply a first order filter with a different time constant for each column of a pandas dataframe?
everyone! I have a pandas dataframe where each column represents a noisy signal, and I would like to apply a first order filter (gain = 1, time constant = “x” seconds) in each column, but with a different time constant for each column. For example: Any ideas? Thanks! Answer You can use apply with …
How to create a Pandas Dataframe from a dictionary with values into one column?
Suppose dict = {‘A’:{1,2,4}, ‘B’:{5,6}}, How to create a Pandas Dataframe like this: Answer Try: Prints:
how to apply a class function to replace NaN for mean within a subset of pandas df columns?
The class is composed of a set of attributes and functions including: Attributes: df : a pandas dataframe. numerical_feature_names: df columns with a numeric value. label_column_names: df string columns to be grouped. Functions: mean(nums): takes a list of numbers as input and returns the mean fill_na(df, num…
Hi, please I am finding it difficult to pass a display form in my templates from views.py please any help would be highly appreciated
I have been trying to fix this error for days now and to no avail, i really need help on how to pass in the context to my templates Views.py Answer To fix this in your template.html
Plotly: How to highlight weekends without looping through the dataset?
I am trying to plot three different timeseries dataframes (each around 60000 records) using plotly, while highlighting weekends (and workhours) with a different background color. Is there a way to do it without looping through the whole dataset as mentioned in this solution. While this method might work, the …