columnsorting

问题 I want to build a method in Java for sorting an array according to values in more than a given column. Let me explain that with an example (matrix array): int matrix[][] = { {0,2,432},{1,1,282},{2,2,456},{3,4,191},{4,5,293}, {5,2,475},{6,2,491},{7,5,171},{8,5,134},{9,3,354}}; I need to sort every triplet according to the second position in decreasing order. After that, I need to sort the triplet in increasing order according to the third position. The code that I'm using for that is: import

问题 I want to build a method in Java for sorting an array according to values in more than a given column. Let me explain that with an example (matrix array): int matrix[][] = { {0,2,432},{1,1,282},{2,2,456},{3,4,191},{4,5,293}, {5,2,475},{6,2,491},{7,5,171},{8,5,134},{9,3,354}}; I need to sort every triplet according to the second position in decreasing order. After that, I need to sort the triplet in increasing order according to the third position. The code that I'm using for that is: import

问题 I want to build a method in Java for sorting an array according to values in more than a given column. Let me explain that with an example (matrix array): int matrix[][] = { {0,2,432},{1,1,282},{2,2,456},{3,4,191},{4,5,293}, {5,2,475},{6,2,491},{7,5,171},{8,5,134},{9,3,354}}; I need to sort every triplet according to the second position in decreasing order. After that, I need to sort the triplet in increasing order according to the third position. The code that I'm using for that is: import

问题 I have two 2D arrays of integers of the same dimension that I need to compare. I am going to explain what I need with an example where Sjm1 is the "original" array and the Sjm2 array has the same values as Sjm1 but the values of each column are ordered in increasing order (i.e. "0" is the min value of Sjm1 in column 0 so Sjm2[0][0]=0 ; then "70" is the next min value of Sjm1 in column 0 ⇒ Sjm2[1][0]=70 ; and so on). I have a method to sort a "Sjm1" array to "Sjm2". Now I need to build an

问题 I have two 2D arrays of integers of the same dimension that I need to compare. I am going to explain what I need with an example where Sjm1 is the "original" array and the Sjm2 array has the same values as Sjm1 but the values of each column are ordered in increasing order (i.e. "0" is the min value of Sjm1 in column 0 so Sjm2[0][0]=0 ; then "70" is the next min value of Sjm1 in column 0 ⇒ Sjm2[1][0]=70 ; and so on). I have a method to sort a "Sjm1" array to "Sjm2". Now I need to build an

问题 I need to build a method in Java where the input is a 2D array of integers and get as a result a 2D array of integers where each element makes reference to a position of an element in a column. Let me explain that with an example. Consider as an input for the method a 2D arrays of 5x5 as follow: int[][] array = new int[][]{ {124, 188, 24, 254, 339}, {0, 7, 77, 145, 159}, {206, 340, 280, 523, 433}, {310, 265, 151, 411, 398}, {24, 104, 0, 183, 198}}; Now I need to build a new 2D array of

问题 I need to build a method in Java where the input is a 2D array of integers and get as a result a 2D array of integers where each element makes reference to a position of an element in a column. Let me explain that with an example. Consider as an input for the method a 2D arrays of 5x5 as follow: int[][] array = new int[][]{ {124, 188, 24, 254, 339}, {0, 7, 77, 145, 159}, {206, 340, 280, 523, 433}, {310, 265, 151, 411, 398}, {24, 104, 0, 183, 198}}; Now I need to build a new 2D array of

问题 I am doing a simple Data Frame that can read and write CSV, and includes sorting function to sort by column. How can I sort the correct column by inputting the Column Header, and exclude the Column Header row from the sorting? This is a sample data of the CSV file: Name,Age,Salary Lim,20,2000 Tan,20,3000 Mah,19,2500 Roger,10,4000 I have declared my 2D List, the data will looks like: List<List<String>> COLUMNDATA = new ArrayList(); COLUMNDATA = [[Name, Age, Salary], [Lim, 20, 2000], [Tan, 20,

问题 I am doing a simple Data Frame that can read and write CSV, and includes sorting function to sort by column. How can I sort the correct column by inputting the Column Header, and exclude the Column Header row from the sorting? This is a sample data of the CSV file: Name,Age,Salary Lim,20,2000 Tan,20,3000 Mah,19,2500 Roger,10,4000 I have declared my 2D List, the data will looks like: List<List<String>> COLUMNDATA = new ArrayList(); COLUMNDATA = [[Name, Age, Salary], [Lim, 20, 2000], [Tan, 20,

问题 new to pySpark and I'm trying to fill a column based on conditions using a list. How can I fill a column based conditions using a list? Python logic if matchedPortfolios == 0: print("ALL") else: print(Portfolios) pySpark attempt with error #Check matching column values in order to find common portfolio names Portfolios = set (portfolio_DomainItemLookup) & set(portfolio_dataset_standardFalse) Portfolios #prints list of matched names OR prints empty list matchedPortfolios = len(Portfolios)