Use a numeric array as Map value

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Ben
Ben 2015 年 7 月 19 日
コメント済み: Ben 2015 年 7 月 22 日
I'm reading through a file and want to create a map of string keys, each with an array of numeric arrays. How do I go about declaring this object and then appending arrays to the values?
  1 件のコメント
Cedric
Cedric 2015 年 7 月 19 日
編集済み: Cedric 2015 年 7 月 19 日
Can you give an example?

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回答 (1 件)

Cedric
Cedric 2015 年 7 月 19 日
編集済み: Cedric 2015 年 7 月 19 日
If I understand well what you are trying to achieve, you can:
  • Build your own system using a cell array of keys and STRCMP/STRCMPI/REGEXP for matching key/value pairs.
  • Use a containers.Map object.
  • Use a Java Hashtable object ( java.util.Hashtable )
Note that if you need to store complex data structures, a good option is to use a hybrid approach, where you define a values cell array, a keys hashtable, and then store complex data structures in the cell array and only their IDs in the hashtable.
  5 件のコメント
Cedric
Cedric 2015 年 7 月 20 日
編集済み: Cedric 2015 年 7 月 20 日
If all you need to implement is this Python-dict-like feature, yes. But if you really have to iterate through files and then use MATLAB for performing some type of processing, then you should stick to MATLAB. The last two mechanisms that I mention are close to Python dictionary objects; learning to use them is much easier than interfacing Python and MATLAB.
Ben
Ben 2015 年 7 月 22 日
Eh, in the end it was easy enough just to save the relevant information to files with Python, then process it further in Matlab.

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