multidimensional-array

问题 Could someone please help explain why I can't get this to work? I properly generates all the locations, however, it doesn't generate the info boxes. Why is this and can someone help me with it? var map = new GMap2(document.getElementById("map")); map.addControl(new GSmallMapControl()); map.addControl(new GMapTypeControl()); map.setCenter(new GLatLng(47.6062, -122.3321), 8); var wa_locations = new Array(new Array("Seattle", "47.6062", "-122.3321", "###-###-####", "###-###-####"), new Array(

问题 I need to implement this following function with NumPy - where F_l(x) are N number of arrays that I need to calculate, which are dependent on an array G(x) , that I am given, and A_j are N coefficients that are also given. I would like to implement it in NumPy as I would have to calculate F_l(x) for every iteration of my program. The dummy way to do this is by for loops and ifs: import numpy as np A = np.arange(1.,5.,1) G = np.array([[1.,2.],[3.,4.]]) def calcF(G,A): N = A.size print A print

问题 I've got a 2D array that I'd like to sort into descending order depending on the contents of the first column, however I'd like the array to retain each row and move the second column as the first moves. To put it into an example; [2, 5] [4, 18] [1, 7] [9, 3] would be sorted into: [9, 3] [4, 18] [2, 5] [1, 7] Thanks. 回答1: int[][] d2 = { {2,5}, {4,18}, {1,7}, {9,3} }; java.util.Arrays.sort(d2, new java.util.Comparator<int[]>() { public int compare(int[] a, int[] b) { return b[0] - a[0]; } });

问题 Here, my code feats value form text file; and create matrices as multidimensional array, but the problem is the code create more then two dimensional array, that I can't manipulate, I need two dimensional array, how I do that? Explain algorithm of my code: Moto of code: My code fetch value from a specific folder, each folder contain 7 'txt' file, that generate from one user, in this way multiple folder contain multiple data of multiple user. step1: Start a 1st for loop, and control it using

问题 Here, my code feats value form text file; and create matrices as multidimensional array, but the problem is the code create more then two dimensional array, that I can't manipulate, I need two dimensional array, how I do that? Explain algorithm of my code: Moto of code: My code fetch value from a specific folder, each folder contain 7 'txt' file, that generate from one user, in this way multiple folder contain multiple data of multiple user. step1: Start a 1st for loop, and control it using

问题 I have multiple jsonb data fields in my postgres database. Like my Contacts table has name, addresses, phones and emails as jsonb data fields. Most of the jsonb data fields are multidimensional. Like emails field have different json data for different email types. Following is the sample emails data i have in my database. [ {"tag": "Home", "value": "foo@bar.com"}, {"tag": "Other", "value": "john@doe.net"}, {"tag": "Work", "value": "john@foo.com"}, {"tag": "Home", "value": "foo@gmail.com"} ] I

问题 Hi I have what I think must be a really simple Rcpp question regarding treating NumericVector objects as multidimensional arrays. I can't find an answer to what might be obvious. Apologies up front if this is the case -- my inexperience with C++ is to blame... If I use the answer posted here a (Constructing 3D array in Rcpp) as an example library("Rcpp") cppFunction(code=' NumericVector arrayC(NumericVector input, IntegerVector dim) { input.attr("dim") = dim; return input; } ') How do I

问题 I have a 2 dimensional array dynamically allocated in my C code, in my function main. I need to pass this 2D array to a function. Since the columns and rows of the array are run time variables, I know that one way to pass it is : -Pass the rows and column variables and the pointer to that [0][0] element of the array myfunc(&arr[0][0],rows,cols) then in the called function, access it as a 'flattened out' 1D array like: ptr[i*cols+j] But I don't want to do it that way, because that would mean a

问题 I have a 2 dimensional array dynamically allocated in my C code, in my function main. I need to pass this 2D array to a function. Since the columns and rows of the array are run time variables, I know that one way to pass it is : -Pass the rows and column variables and the pointer to that [0][0] element of the array myfunc(&arr[0][0],rows,cols) then in the called function, access it as a 'flattened out' 1D array like: ptr[i*cols+j] But I don't want to do it that way, because that would mean a

问题 I am currently programing in python and I created a method that inputs list from the user, without knowing whether he is multidimensional or one dimensional. how do I check? sample: def __init__(self,target): for i in range(len(target[0])): w[i]=np.random.rand(len(example[0])+1) target is the list. the problem is that target[0] might be int. 回答1: I think you just want isinstance ? Example usage: >>> a = [1, 2, 3, 4] >>> isinstance(a, list) True >>> isinstance(a[0], list) False >>> isinstance