how to make the same length in the struct

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Luca Re
Luca Re 2023-8-28
评论： Luca Re 2023-8-30
i've a struct with filed of various length (see pics)
i want to make the same length of this array
and assign the zero in the data that is not there at the end
i try this ..but it's not correct
>> [Sis.d]
Error using horzcat
Dimensions of arrays being concatenated are not consistent.
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Bruno Luong
Bruno Luong 2023-8-29
编辑：Bruno Luong 2023-8-29
This thread becomes completely a mess. The problem asked now has nothing to do with Padding arrays in structure.
The other thread should not be closed.
Luca Re
Luca Re 2023-8-29
编辑：Luca Re 2023-8-29
using last example i write code to do it:
%DATA "XX1"
data=[
'25-Feb-2008'
'26-Feb-2008'
'27-Feb-2008'
];
data=datetime(data);
%DAILYPROF "XX1"
dailyprof=[
4
5
6
];
b(1)=struct("Sistema",{"xx1"},"Date",data,"dailyprof",dailyprof);
%DATA "XX21"
data=[
'26-Feb-2008'
'27-Feb-2008'
'28-Feb-2008'
];
data=datetime(data);
%DAILYPROF "XX2"
dailyprof=[
7
8
9
];
b(2)=struct("Sistema",{"xx2"},"Date",data,"dailyprof",dailyprof);
%{
25-feb-2023 4 0
26-feb-2023 5 7
27-feb-2023 6 8
28-feb-2023 0 9
%}
v=[b.Date];
g=unique(v)
hh=zeros(size(g));
for i=1:numel(g)
for h=1:numel(b(1).Date)
if g(i)==b(1).Date(h)
hh(i)=b(1).dailyprof(h);
end
end
end
M(1)=struct("Sistema",{"xx1"},"Date",g,"dailyprof",hh);
hh=zeros(size(g));
for i=1:numel(g)
for h=1:numel(b(2).Date)
if g(i)==b(2).Date(h)
hh(i)=b(2).dailyprof(h);
end
end
end
M(2)=struct("Sistema",{"xx2"},"Date",g,"dailyprof",hh);
RESULT IS M!

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采纳的回答

Bruno Luong
Bruno Luong 2023-8-29
Ran in:
load('matlab_sis.mat')
Date = unique(cat(1,Sis.Date));
DAILYPROOF = nan(length(Date),length(Sis));
for k=1:length(Sis)
sk = Sis(k);
[tf, i] = ismember(sk.Date, Date);
DAILYPROOF(i,k) = sk.dailyprof;
end
T = table(Date, DAILYPROOF)
T = 71×2 table
Date DAILYPROOF ___________ _______________________ 24-Feb-2008 1510 NaN NaN 25-Feb-2008 0 NaN NaN 26-Feb-2008 940 NaN NaN 27-Feb-2008 0 NaN NaN 28-Feb-2008 0 NaN NaN 29-Feb-2008 0 NaN NaN 01-Mar-2008 0 NaN NaN 02-Mar-2008 -70 NaN NaN 03-Mar-2008 -190 0 NaN 04-Mar-2008 -1360 0 NaN 05-Mar-2008 0 290 NaN 06-Mar-2008 0 1220 NaN 07-Mar-2008 0 0 NaN 08-Mar-2008 0 120 NaN 09-Mar-2008 180 0 NaN 10-Mar-2008 -140 0 NaN
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Bruno Luong
Bruno Luong 2023-8-29
Version without loop
n = length(Sis);
Date = {Sis.Date};
lgt = cellfun(@length, Date);
[Date, ~, i] = unique(cat(1,Date{:}));
j = repelem((1:n)',lgt(:));
DAILYPROOF = nan(length(Date),length(Sis));
DAILYPROOF(i+n*(j-1)) = cat(1,Sis.dailyprof);
T = table(Date, DAILYPROOF)

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更多回答（1 个）

Bruno Luong
Bruno Luong 2023-8-28
Ran in:
s=struct('a',rand(5,1),'b',rand(3,1),'c',rand(6,1))
s = struct with fields:
a: [5×1 double] b: [3×1 double] c: [6×1 double]
maxheight = max(structfun(@height,s));
padarrays = structfun(@(x) [x; zeros(maxheight-height(x),1)], s, 'unif', 0)
padarrays = struct with fields:
a: [6×1 double] b: [6×1 double] c: [6×1 double]
padarrays.a
ans = 6×1
0.8804 0.0268 0.8319 0.5125 0.7417 0
padarrays.b
ans = 6×1
0.5513 0.1335 0.7522 0 0 0
padarrays.c
ans = 6×1
0.4471 0.9683 0.7315 0.4339 0.3527 0.5825
  1 个评论
Luca Re
Luca Re 2023-8-28
编辑：Luca Re 2023-8-28
i get this error4:
s=Sis.d;
Error using structfun
Inputs to STRUCTFUN must be scalar structures.
Error in untitled2 (line 6)
maxheight = max(structfun(@height,s));
because in the structure there are other camps besides the Sis.d

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