I’m trying to convert a named and nested list into a data frame (FYI, the list is a product of st_nn function, where nn stands for nearest neighbor and d stands for distance). Below is a reproducible example. nn <- list(c(1,2), c(2,3)) d <- list(c(0, 100), c(11,43)) l <- list(nn, d) df is what I […]

# Tag: c2

list1 = list( c(4,5,6,7,1,1,1,1,3,1,3,3), c(3,4,5,6,2,2,2,2,1,4,2,1), c(1,2,3,4,1,1,1,1,3,2,1,1), c(5,6,7,8,1,1,1,1,4,4,4,3), c(2,3,4,5,2,2,2,2,2,1,2,1) ) data1=data.frame(“ID”=c(1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5), “Time”=c(1,2,3,4,1,2,3,4,1,2,3,4,1,2,3,4,1,2,3,4), “Grade”=c(4,5,6,7,3,4,5,6,1,2,3,4,5,6,7,8,2,3,4,5), “Class”=c(1,1,1,1,2,2,2,2,1,1,1,1,1,1,1,1,2,2,2,2), “Score”=c(3,1,3,3,1,4,2,1,3,2,1,1,4,4,4,3,2,1,2,1)) I have ‘list1’ Each item in ‘list1’ equals to a single individual’s Grade, Class, Score for 4 years. So ‘list1’ has 5 students and 12 records for each student (4 records for every of three variables, Grade and Class and Score). […]

my Array size is unknow and I would like to remove the very last column a = np.array([[“A1″,”A2″,”A3”],[“B1″,”B2″,”B3”],[“C1″,”C2″,”C3”]]) I tried a[-1:] it deleted all rows except the last row and i tried a[:-1] it deleted the last row. how can I delete the last column?

i have a list of names(Column A), the numbers in columns B to F are result of a formula. I’m trying to create a FOR LOOP code that will check columns B to F, if all cells in B to F are zero then the code should ignore the current row and skip to the […]

I am trying to develop a program that shuffles a deck by dividing the deck into two and then interlacing them. Class Deck represents a deck of 52 cards. There are two methods: Deck(int n) and Card drawCard(). Deck(int n) is the constructor. The parameter tells how many rounds the deck should be shuffled. In […]

HI I am very begginner of JAVA And i want to solve this quiz Quiz Create a function that takes two ints, divides them into four bytes, adds each digit, and then sums them example 120 | 50 | 100 | 1 | ⇐ 2016568321 -120 | -50| -100| -1| ⇐ -1999725313 ⇓ ⇓ ⇓ […]

Imagine I have a R data.table with following string column: string a1; b: b1, b2, b3; c: c1, c2, c3 a1; b: b2, b3, b4; c: c1, c2, c3; d: d1, d2, d3 a2; b: b1, b2, b3; c: c2, c5, c6; d: d1, d2, d3; e: e2, e3, e4 a5; b: b5, b6, b7; […]

this question is heavily weighted so I am wonder if my answers are correct or if there is a better way to do them. Captain Picard and the rest of the crew of the Enterprise are defending their position on the moon Yavin IV against the evil robotic Cylon invaders. Each day of the battle, […]

I have a workbook with a worksheet containing the following: Destination Worksheet The data in cells B1, C1, D1 need to be equal to the value of cells A1, A2, A3 in a worksheet in same workbook named DOD11.2 (i.e. the name of the worksheet is the same as the letters up to the character […]

## Counting polysticks on the $n$-cube.

Over at Code Golf Stack Exchange, I put up a challenge asking people to count, among other things, the number of ways to take an $n$-cube and color $k$ (connected) edges up to isometries of the $n$-cube. Let’s call this number $C(n,k)$. For example, when $n=3$ (the ordinary cube) and $k=4$, $C(3,4) = 4$ as […]