I’m trying to learn classes, so here I want to create n-number Triangle and Rectangle types, input a,b,c, also input from user and then cout them.. im trying to get n-number of Triangle and Rectangle with for loop but at the end I get print only the biggest S() and P() which user had entered..… Read More using a class n times with a for loop c++

I have a problem. I have a list that contains 2549150 elements. However, I don’t want to convert the whole list into a dataframe at once, using the pd.json_normalize method. I would like to convert the list into a dataframe step by step. First I want to convert the first 100,000 elements of the list,… Read More Convert a list of jsons into a dataframe and then step-by-step

I have a csv that contains user Ids movie Ids and ratings and I would like to return all of the movie ids for certain user ids. This is what the data looks like userId movieId rating timestamp 1 1 4.0 964982703 1 3 4.0 964981247 1 6 4.0 964982224 1 47 5.0 964983815 1… Read More How to find column b when column a equals a certain value in data frames python

Why does this code, does not return (or print) the 0 index of the list? N = int(input()) letters = [‘A’, ‘B’, ‘C’, ‘D’, ‘E’, ‘F’, ‘G’, ‘H’, ‘I’, ‘J’, ‘K’, ‘L’, ‘M’, ‘N’, ‘O’, ‘P’, ‘Q’, ‘R’, ‘S’, ‘T’, ‘U’, ‘V’, ‘W’, ‘X’, ‘Y’, ‘Z’] for i in range(N): print(letters[i]*i) output: should be: A… Read More How to print an index 0 of a list, with for loop?

I am trying to get the daily mean and maximum values for each pollutant. For each of the monitoring stations, the daily mean and maximum values of each pollutant shall be calculated. Here is a sample of my dataframe: df <- data.frame (Station = c(1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4,… Read More How do obtain max and mean values from different columns with a Date column condition in R?

I am trying to write lists from a file and define them to separate values in a dictionary. The text file would look something like this: [12, 13, 14] [87, 45, 32] … and then the dictionary would look something like this: {"score_set0": [12, 13, 14], "score_set1": [87, 45, 32]…} This is the code I… Read More Write items to a dictionary from a file python

I am trying to iterate through a nested dictionary using a for loop to display all the books in a certain language. I want it to display Title, author, Type, and the copies sold. I’m getting the following error on the last line: "Message=too many values to unpack (expected 2)" This is the line in… Read More Too many values to unpack: For loop with nested dictionaries

I was just attempting to recreate an example using the rbinom function, but the numbers of "successes" is a lot higher than I would be expecting due to the low probabilities. numSamples <- 10000 #number of samples to be drawn from population numTrials <- 100 #this is the sample size (size of each sample) probs… Read More rbinom is producing higher than expected amounts of success

I am quite new to Pandas and would like to find out how I can read and then write to a DataFrame row by from in a loop. Input information Index lemmatized_text MulNB 1 item inexpens NaN 2 overall exper NaN 3 screen n’t co NaN 4 screen not co NaN 5 ‘ve view nume… Read More DataFrame write information to specific column and row in a loop

Hi guys! =) I’m new to Java, currently, I’m learning arrays and loops. I have an interesting homework task that I am very confused about. And I don’t know what to do with this one. So I need your advice. Create a public String getCheapStocks(String[] stocks) method in it. It takes an array of strings… Read More How to split an array of strings whose indexes contain integers and letters Java