How to filter table by variable ?

Question

Arif 2024-4-14

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2106681-how-to-filter-table-by-variable

评论： Voss 2024-4-14

Hi guys can u help me to solve this problem. Im trying to filter my table named jointbase only for number of rows that specified in VariantIDPassed. Thanks

clear;
clc;
H = 5;
L = 15;
Ns = 2;
Nb = 1;
PortalHeight = H;
Bayspan = L;
NumberStory = Ns;
NumberBay = Nb;
% Variable1
h = [0.8,1.00,1.20,1.40,1.6,1.80];
% Variable2
Lss = [2.00,2.40,2.80,3.20,3.60,4.00];
% Variable3
Nss = [2,3,4];
% Definition
Var1HeightofTrussBeam = h;
Var2LengthSpecialSegment = Lss;
Var3NumberSpecialSegment = Nss;
% % Xbase = zeros(1,length(Totalvariant));
% % Zbase = zeros(1,length(Totalvariant));
% % Xcol = zeros(1,length(Totalvariant));
% % Zcol = zeros(1,length(Totalvariant));
% % Xos = zeros(1,length(Totalvariant));
% % Zos = zeros(1,length(Totalvariant));
% % Xss = zeros(1,length(Totalvariant));
% % Zss = zeros(1,length(Totalvariant));
% % X = zeros(1,length(Totalvariant));
% % Z = zeros(1,length(Totalvariant));
% % jointbase = zeros(1,length(Totalvariant));
% % jointcolumn = zeros(1,length(Totalvariant));
% % jointordinarysegment = zeros(1,length(Totalvariant));
% % jointtopordinarysegment = zeros(1,length(Totalvariant));
% % jointbottomordinarysegment = zeros(1,length(Totalvariant));
% % jointspecialsegment = zeros(1,length(Totalvariant));
% % jointtopspecialsegment = zeros(1,length(Totalvariant));
% % jointbottomspecialsegment = zeros(1,length(Totalvariant));
ijk = 0;
for i = 1:numel(h)
    for j = 1:numel(Lss)
        for k = 1:numel(Nss)
            ijk = ijk+1;
            Variantmodel{ijk,:} = table(ijk,h(i),Lss(j),Nss(k),'VariableNames',{'VariantID','Height','Length','Number'});
%% Base(base)
Xbase{ijk,:} = L*(0:NumberBay);
Zbase{ijk,:} = repelem(0,1,length(Xbase{ijk,:}));
%% Column(col)
Xcolumn = L*(0:NumberBay);
Zcolumn = repelem(H*(1:NumberStory),1,length(Xcolumn));
Xbotbeam = L*(0:NumberBay);
Zbotbeam = repelem((H*(1:NumberStory)-h(i)),1,length(Xbotbeam));
% replicate [X] to be the same size as [Z] for plotting:
Xcol{ijk,:} = repmat([Xcolumn,Xbotbeam],1,NumberStory);
Zcol{ijk,:} = [Zcolumn,Zbotbeam];
%% Ordinary Segment
% calculate span length of ordinary segment 
Los = (L-Lss(j))/2;
Nos = Los/h(i);
Nos = round(Nos);
los = Los/Nos;
totalspan{ijk,:} = los*Nos*2+Lss(j);
if totalspan{ijk,:} == 15.000
    checkspan{ijk,:} = "correct span";
else
    checkspan{ijk,:} = "span must be 15m";
end
% top and bottom joint of ordinary segment(os)
XTopOrdinarySegment = reshape([los*(1:Nos),(L/2+Lss(j)/2)+los*(0:Nos-1)].'+L*(0:(NumberBay-1)),1,[]);
XBottomOrdinarySegment = XTopOrdinarySegment;
ZTopOrdinarySegment = repelem(H*(1:NumberStory),1,2*Nos*NumberBay);
ZBottomOrdinarySegment = repelem(H*(1:NumberStory)-h(i),1,2*Nos*NumberBay);
% replicate [X] to be the same size as [Z] for plotting:
Xos{ijk,:} = repmat([XTopOrdinarySegment,XBottomOrdinarySegment],1,NumberStory);
Zos{ijk,:} = [ZTopOrdinarySegment,ZBottomOrdinarySegment];
%% Special Segment
% calculate span length of special segment 
lss = Lss(j)/Nss(k);
% top and bottom joint of special segment(ss)
XTopSpecialSegment = reshape((lss*(0:Nss(k))+L/2-Lss(j)/2).'+L*(0:(NumberBay-1)),1,[]);
XBottomSpecialSegment = XTopSpecialSegment;
ZTopSpecialSegment = repelem(H*(1:NumberStory),1,length(XTopSpecialSegment));
ZBottomSpecialSegment = repelem(H*(1:NumberStory)-h(i),1,length(XBottomSpecialSegment));
% replicate [X] to be the same size as [Z] for plotting:
Xss{ijk,:} = repmat([XTopSpecialSegment,XBottomSpecialSegment],1,NumberStory);
Zss{ijk,:} = [ZTopSpecialSegment,ZBottomSpecialSegment];
%% Plot Joint
X{ijk,:} = [Xbase{ijk,:},Xcol{ijk,:},Xos{ijk,:},Xss{ijk,:}];
Z{ijk,:} = [Zbase{ijk,:},Zcol{ijk,:},Zos{ijk,:},Zss{ijk,:}];
scatter(X{ijk,:},Z{ijk,:},'filled'),grid on
%check angle
tangent = (Lss(j)/Nss(k))/h(i);
anglespecialsegment(ijk) = atand(tangent);
%% Name Joint
jointbase{ijk} = table((1:numel(Xbase{ijk,:}))',Xbase{ijk,:}',Zbase{ijk,:}','VariableNames',{'ID','X','Z'});
jointcolumn{ijk} = table((max(jointbase{ijk}.ID)+1:numel(Xcol{ijk,:})+max(jointbase{ijk}.ID))',Xcol{ijk,:}',Zcol{ijk,:}','VariableNames',{'ID','X','Z'});
jointordinarysegment{ijk} = table((max(jointcolumn{ijk}.ID)+1:numel(Xos{ijk,:})+max(jointcolumn{ijk}.ID))',Xos{ijk,:}',Zos{ijk,:}','VariableNames',{'ID','X','Z'});
jointtopordinarysegment{ijk} = jointordinarysegment{ijk}(ismember(jointordinarysegment{ijk}.Z,Zcolumn),:);
jointbottomordinarysegment{ijk} = jointordinarysegment{ijk}(ismember(jointordinarysegment{ijk}.Z,Zbotbeam),:);
jointspecialsegment{ijk} = table((max(jointbottomordinarysegment{ijk}.ID)+1:numel(Xss{ijk,:})+max(jointbottomordinarysegment{ijk}.ID))',Xss{ijk,:}',Zss{ijk,:}','VariableNames',{'ID','X','Z'});
jointtopspecialsegment{ijk} = jointspecialsegment{ijk}(ismember(jointspecialsegment{ijk}.Z,Zcolumn),:);
jointbottomspecialsegment{ijk} = jointspecialsegment{ijk}(ismember(jointspecialsegment{ijk}.Z,Zbotbeam),:);
        end
    end
end
tablecheck = table((1:numel(anglespecialsegment))',totalspan,anglespecialsegment','VariableNames',{'VariantID','Total Span','Angle'});
VariantIDPassed = tablecheck.VariantID(tablecheck.Angle>=30 & tablecheck.Angle<=60);
jointbase = table((1:numel(jointbase))',jointbase','VariableNames',{'VariantID','Joint Base'});
jointbase = jointbase(jointbase.VariantID==VariantIDPassed,:)