multidimensional-array

问题 I've to implement a setter in PHP, that allows me to specify the key, or sub key, of an array (the target), passing the name as a dot-separated-keys value. Given the following code: $arr = array('a' => 1, 'b' => array( 'y' => 2, 'x' => array('z' => 5, 'w' => 'abc') ), 'c' => null); $key = 'b.x.z'; $path = explode('.', $key); From the value of $key I want to reach the value 5 of $arr['b']['x']['z'] . Now, given a variable value of $key and a different $arr value (with different deepness). How

问题 I tried to create turn a python list into a numpy array, but got very unintuitive output. Certainly I did something wrong, but out of curiosity I would like to know why I got such an output. Here is my code: import numpy as np # Exercise 2 a = [1, 5, 3, 6, 2] b = np.ndarray(a) print(b, b.dtype) the output was [[[[[0.00000000e+000 6.93284651e-310] [6.93284792e-310 6.93284744e-310] [6.93284744e-310 6.93284744e-310] [6.93284744e-310 6.93284744e-310] [6.93284744e-310 6.93284744e-310] [6.93284744e

问题 What is the best method to get the simple descriptive statistics of any column in a dataframe (or list or array), be it nested or not , a sort of advanced df.describe() that also includes nested structures with numerical values. In my case, I have a dataframe with many columns. Some columns have a numerical list in each row (in my case a time series), which is nested structure. It is not important that it is a dataframe, other structures are also included in the question, as changing between

问题 What is the best method to get the simple descriptive statistics of any column in a dataframe (or list or array), be it nested or not , a sort of advanced df.describe() that also includes nested structures with numerical values. In my case, I have a dataframe with many columns. Some columns have a numerical list in each row (in my case a time series), which is nested structure. It is not important that it is a dataframe, other structures are also included in the question, as changing between

问题 I am working with Google Sheets and Google Apps Scripting. I have used .getRange().getValues to grab user emails from a Sheet. Example Array Received: [[user1, , ], [user2, user3, ], [user4, user5, user6]] As you can see, I have a potential of up to three users per row (inner array). However, some of those cells are empty resulting in empty values in the array. I am then feeding each inner array into .addEditors() which throws an error due to the empty user. I know I can run through each

问题 I asked this question How is the cosine distance calculated for two arrays with different shapes in Python? yesterday and got a precise answer. However, I tried using the same function to get the cosine distance between xx and yy below as a list, row wise Cosine distance of a row in xx to a row in yy. They are arrays of different shapes. What would be the solution. I must be missing something from the earlier example:- xx = np.array([[ 8.07105800e-01, 2.87828956e-01], [ 8.97970426e-01, 3

问题 I am initializing a php array as follows $newArray = array(); $newArray['2014-13-03']['SMD']['ID'] = 5; $newArray['2014-13-03']['SMD']['ID'] = 10; Just wanted to check if you guys think this is a wrong way to insert data into an array. It is working just fine, but still wanted to check from optimization standpoint 来源： https://stackoverflow.com/questions/22183704/php-multidimensional-array-initialization

问题 I am initializing a php array as follows $newArray = array(); $newArray['2014-13-03']['SMD']['ID'] = 5; $newArray['2014-13-03']['SMD']['ID'] = 10; Just wanted to check if you guys think this is a wrong way to insert data into an array. It is working just fine, but still wanted to check from optimization standpoint 来源： https://stackoverflow.com/questions/22183704/php-multidimensional-array-initialization

问题 I am initializing a php array as follows $newArray = array(); $newArray['2014-13-03']['SMD']['ID'] = 5; $newArray['2014-13-03']['SMD']['ID'] = 10; Just wanted to check if you guys think this is a wrong way to insert data into an array. It is working just fine, but still wanted to check from optimization standpoint 来源： https://stackoverflow.com/questions/22183704/php-multidimensional-array-initialization

问题 I have: $request = Array ( [ID] => 2264 [SUCCESS] => Array ( [0] => Array ( [MESSAGE] => Service Details [LIST] => Array ( [retail_name] => [credit_admin] => FREE [credit] => 0 [discount_admin] => 0 [discount] => 0 [cartdiscount] => 0 If I do: echo $request[ID]; // it says: 2264 echo $request[SUCCESS]; // it says: Array echo $request[SUCCESS][0][MESSAGE]; // it says: Service Details But I need to echo "credit" and if I do: echo $request[SUCCESS][0][LIST]; // I get ERROR echo $request[SUCCESS]