Dictionary with key-value pair of string ---> string array?

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the cyclist 2024-4-6，22:08

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编辑： the cyclist 2024-4-7，0:46

Using the older containers.Map object, I can map a string to a string array:

keySet = ["Jan";"Feb";"Mar"];
valueSet = {["New Year","MLK"]; ["Valentine's","Presidents'"];[]};
M = containers.Map(keySet,valueSet);
M("Jan")
ans = 1x2 string array
    "New Year"    "MLK"

I have not found a way to make a similar mapping via the newer dictionary object (even though the documentation states that a dictionary is preferred "because it supports more data types as keys and values and provides better performance").

Maybe I'm overlooking something. Any suggestions are appreciated.

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Answer 1

Paul 2024-4-6，22:59

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Hi cyclist,

Do you mean mapping to the string array contained inside the cell?

keySet = ["Jan";"Feb";"Mar"];
valueSet = {["New Year","MLK"]; ["Valentine's","Presidents'"];[]};
d = dictionary(keySet,valueSet)
d =

  dictionary (string --> cell) with 3 entries:

    "Jan" --> {["New Year"    "MLK"]}
    "Feb" --> {["Valentine's"    "Presidents'"]}
    "Mar" --> {0x0 double}
d("Jan")
ans = 1x1 cell array
    {["New Year"    "MLK"]}
d{"Jan"}
ans = 1x2 string array
    "New Year"    "MLK"