multidimensional-array

问题 I have an associative array: Array ( [0] => Array ( [term_title] => black ) [1] => Array ( [color_quantity] => 2 ) [2] => Array ( [color_price] => 22 ) [3] => Array ( [term_title] => blue ) [4] => Array ( [color_quantity] => 3 ) [5] => Array ( [color_price] => 33 )) How can I change it into: Array ( [0] => Array ( [term_title] => black, [color_quantity] => 2, [color_price] => 22 ) [1] => Array ( [term_title] => blue, [color_quantity] => 3, [color_price] => 33 ) ) I try the following code:

问题 I have a numpy ndarray with 6 elements: ['\tblah blah' '"""123' 'blah' '"""' '\t456' '78\t9'] I am trying to replace all tab characters \t with 4 spaces each so that the numpy array would now be: [' blah blah' '"""123' 'blah' '"""' ' 456' '78 9'] I have considered re.sub but cannot figure out how to implement it when it comes down to an numpy ndarray. Any suggestions/help please? 回答1: You could use NumPy's core.defchararray that deals with string related operations and for this case use

问题 I have a numpy ndarray with 6 elements: ['\tblah blah' '"""123' 'blah' '"""' '\t456' '78\t9'] I am trying to replace all tab characters \t with 4 spaces each so that the numpy array would now be: [' blah blah' '"""123' 'blah' '"""' ' 456' '78 9'] I have considered re.sub but cannot figure out how to implement it when it comes down to an numpy ndarray. Any suggestions/help please? 回答1: You could use NumPy's core.defchararray that deals with string related operations and for this case use

问题 I have a multidimensional array which stores information about players in a game. It stores an array for each player, and each player is an array of information. One of the values in each player is an array of scores. I want to output my data to a table in order of highest total score to lowest. At the moment, the output is in no particular order. The only way I know of to get the total score is array_sum($allplayers[0][2]) or similar. How can I sort the array $allplayers so that when I loop

问题 I'm working on a program that does some matrix math. Fortunately the code logic is not what is giving me the errors. I am using the following code to output a matrix that is stored in a 2-d array: void ouputMatrix(char arr[], int matrixRows, int matrixColumns) { for (int a=0; a<matrixRows; a++) { for (int i=0; i<matrixColumns; i++) { cout << arr[a][i] << " "; } cout << endl; } cout << endl; } However when I try to compile this code, I am told: "In function 'void outputMatrix(char*, int, int)'

问题 I'm trying to make a simple PHP script that fetches a table from my MySQL database and encodes the results in JSON, so I can use them later in Java. This is my code: <?php $servername = "localhost:3036"; $username = "example_user"; $password = "example_password"; $conn = mysql_connect($servername, $username, $password); if(! $conn) { die("Could not connect: " . mysql_error()); } $sql = "SELECT * FROM table_name"; mysql_select_db("database_name"); $retval = mysql_query($sql, $conn); if(!

问题 What I am trying to do is call a C++ method from Python to return a 2D array. The Python filename is: BaxterArm1.py and the C++ filename is: baxIK.cpp. Below is how I compiled my c++ program: g++ -c -fPIC baxIK.cpp -o baxIK.o g++ -shared -Wl,-soname,baxIK.so -o baxIK.so baxIK.o Below is the relevant part of the C++ program: int main(int argc, char** argv) { } extern "C" float** compute(float x, float y, float z, float q1, float q2, float q3, float q4) { unsigned int num_of_solutions = (int

问题 What I am trying to do is call a C++ method from Python to return a 2D array. The Python filename is: BaxterArm1.py and the C++ filename is: baxIK.cpp. Below is how I compiled my c++ program: g++ -c -fPIC baxIK.cpp -o baxIK.o g++ -shared -Wl,-soname,baxIK.so -o baxIK.so baxIK.o Below is the relevant part of the C++ program: int main(int argc, char** argv) { } extern "C" float** compute(float x, float y, float z, float q1, float q2, float q3, float q4) { unsigned int num_of_solutions = (int

问题 What I am trying to do is call a C++ method from Python to return a 2D array. The Python filename is: BaxterArm1.py and the C++ filename is: baxIK.cpp. Below is how I compiled my c++ program: g++ -c -fPIC baxIK.cpp -o baxIK.o g++ -shared -Wl,-soname,baxIK.so -o baxIK.so baxIK.o Below is the relevant part of the C++ program: int main(int argc, char** argv) { } extern "C" float** compute(float x, float y, float z, float q1, float q2, float q3, float q4) { unsigned int num_of_solutions = (int

问题 I have 2 multidimensional arrays: [[230.0], [10.0], [12.0]] [[50.0], [60.0], [89.0]] And am trying to sum each element together and keep the same array structure. So it should look like: [[280.0], [70.0], [101.0]] I tried this: var sum = array1.map(function (num, index) { return num + array2[index]; }); But I get this: [23050, 1060, 1289] Any help would be appreciated. Thanks. 回答1: Make it like this var sum = array1.map(function (num, index) { return parseInt(num) + parseInt(array2[index]); }