Anyway to Pre-allocate Memory for Struct

1 回表示 (過去 30 日間)
nas illmatic
nas illmatic 2015 年 7 月 17 日
移動済み: Stephen23 2022 年 12 月 14 日
Is there anyway to pre-allocate memory for a struct?
I have a
1x2 struct with 2 fields.
>> s = struct('Name',0,'Name2',0)
But, it comes up as a 1x1 struct.

回答 (3 件)

Walter Roberson
Walter Roberson 2015 年 7 月 17 日
s = struct('Name',{0,0},'Name2',{0,0});
That is, use a cell array, one entry per struct member.

prasanth s
prasanth s 2022 年 12 月 14 日
s=struct;
s(1).Name=0
s(2).Name=0

Stephen23
Stephen23 2022 年 12 月 14 日
移動済み: Stephen23 2022 年 12 月 14 日
Here are two generalizable, easily expandable appraches:
S = repmat(struct('Name',[],'Name2',[]),1,2)
S = 1×2 struct array with fields:
Name Name2
C = cell(1,2);
S = struct('Name',C,'Name2',C)
S = 1×2 struct array with fields:
Name Name2

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