I’m trying to create an 2d numpy array in shape n x k where n is the dimension of the ndarray given and k is the amount of elements from the ndarray that are integers. Each row in the returned array should contain the indexes at which the condition holds at the relevant dimension.
For example, the ndarray is:
I’m a beginner in Pandas. I have a data file containing 10000 different information of users. This data contain 5 columns and 10000 rows. One of these columns is the district of the users and it divides users according to their living place(It defines just 7 different locations and in each of locations some number of users live). as an example, out of this 10000 users, 300 users live in USA and 250 Live in Canada and..
I want to define a DataFrame which includes five random rows of users with the distinct of: USA,Canada,LA,NY and Japan. Also, the dimensions needs to be 20*5. Can you please help me how to do that?
I know for choosing random I need to use
I tried to write a nested loop in a Python shell but got a syntax error after entering the second line:
In the below dataframe the column “CumRetperTrade” is a column which consists of a few vertical vectors (=sequences of numbers) separated by zeros. (= these vectors correspond to non-zero elements of column “Portfolio”). I would like to find the cumulative local maxima of every non-zero vector contained in column “CumRetperTrade”.
To be precise, I would like to transform (using vectorization – or other – methods) column “CumRetperTrade” to the column “PeakCumRet” (desired result) which gives for every vector ( = subset corresponding to ’Portfolio =1 ’) contained in column “CumRetperTrade” the cumulative maximum value of (all its previous) values. The numeric example is below. Thanks in advance!
PS In other words, I guess that we need to use cummax() but to apply it only to the consequent (where ‘Portfolio’ = 1) subsets of ‘CumRetperTrade’
if I have a string ‘Tpsawd_20220320_default_economic_v5_0.xls’.
I have a QListWidget containing one item, I want the item’s texts to be partially bold, so I created a QItemWidget for it. I use a QLabel in it to display the partially bold texts, the code is as follows:
I need to filter my objects in a way to get them grouped by range (range is fixed, for this case let’s say we have these 3 ranges [0.0, 33.0] [33.01, 66.0] [66.01, 100.0]
I have .csv file, about ramen and brands, varieties and ratings. I want to figure out, which Brand uses the Variety “Tom Yum” the most. I tried it with a defaultdict but i get the error code: string indices must be integers
I can’t quite seem to figue out how to get my curve to be displayed smoothly instead of having so many sharp turns.
I am hoping to show a boltzmann probability distribution. With a nice smooth curve.