clear; close all; [data, text]=xlsread('file_name',4); data=data(~isnan(data(:,1)),:);% take only rows where the element in the firstz column is a reakl number ndata=size(data,2)-1; for i=1:ndata%11 data sets (excl time) G{1,i}=data(:,1)/60; G{2,i}=data(:,1+i);%-data(:,2); end dt=(G{1,i}(2)-G{1,i}(1)); smoothness=7; tmin=10; P2=zeros(2,ndata); edge2=zeros(1,ndata); ctr=[1:12]; % ser=[2,3]; % cys=[4]; % ile=[7,14]; % SerIle=[8,15]; % SerAsp=[6,13]; % AspIle=[9,16]; datasets=[ctr]; for i=datasets lG{1,i}=G{1,i};% times lG{2,i}=log(G{2,i}); % log of data Gi{1,i}=lG{1,i}; Gi{2,i}=smooth(lG{1,i},lG{2,i},smoothness,'lowess'); dG{1,i}=lG{1,i}(2:end)-(dt/2); dG{2,i}=(diff(Gi{2,i})/dt);%derivative of interpolated curve divided by O.D. = growth rate %dG{1,i}=Gi{1,i}; %dG{2,i}=TVRegDiff(lG{2,i},10,10,[],'scale','large')/dt; [P,~, ExtP]=mspeaks(dG{1,i},dG{2,i},'ShowPlot', 'true', 'Style','Extline','Denoising','true');%,'OverSegmentationFilter',20000);%true to view plots if isempty(P) disp(['Skipping data set ',num2str(i),'. No peaks found']); continue; end II=P(:,1)>tmin; P=P(II,:); ExtP1=ExtP(II,:); ExtP=ExtP1; [~,i1]=sort(P(:,2),'descend'); P=P(i1,:); ExtP=ExtP(i1,:); Pmax(1,i)=P(1,1);%time of max growth Pmax(2,i)=P(1,2);%max growth rate edgemax(i)=ExtP(1,1);%left edge of peak mOD(i)=spline(G{1,i},G{2,i},Pmax(1,i));%OD at max growth rate eP=P(P(:,1)
= 0.3*hPmax; P2(1,i)=eP(1,1); P2(2,i)=eP(1,2);%highest peak before max peak edge2(i)=eExtP(1,1);%left edge of highest peak before max peak end x=abs(dG{2,i}-0.25*hPmax-dG{2,i}(I1) ); [~,I]=min(x(I1:I2));%index of the closest point that is 0.25 of the max peak (search between the left edge and the maximum) time25(i)=dG{1,i}(I+I1-1); if edge2(i)>0 %there is a real second peak i avggrowth1(i)=mean(dG{2,i}( dG{1,i}>=edge2(i) & dG{1,i}<=Pmax(1,i)) ); avggrowth2(i)=mean(dG{2,i}( dG{1,i}>=edge2(i) & dG{1,i}<=P2(1,i)) ); avggrowth3(i)=mean(dG{2,i}( dG{1,i}>=edge2(i) & dG{1,i}<=time25(i) )); area(i)=dt*trapz(dG{2,i}( dG{1,i}>=edge2(i) & dG{1,i}<=time25(i) )); else %there is no second peak avggrowth1(i)=mean(dG{2,i}( dG{1,i}>=edgemax(i) & dG{1,i}<=Pmax(1,i)) ); avggrowth2(i)=0; avggrowth3(i)=mean(dG{2,i}( dG{1,i}>=edgemax(i) & dG{1,i}<=time25(i) )); area(i)=dt*trapz(dG{2,i}( dG{1,i}>=edgemax(i) & dG{1,i}<=time25(i) )); end dGOD{1,i}=spline(G{1,i},G{2,i},dG{1,i});%the O.D. at the timepoints of the growth rate dG; %the growth rate is 1/G dG/dt dGOD{2,i}=dG{2,i}; %X = sprintf('%s: max growth rate %f at time %d and OD %f. Average growth rate: %f',text{i+1},M,maxtime,mOD,r); %disp(X) % figure(10) % plot(G{1,i},G{2,i},'LineWidth',2); %pause; end out={'Condition','Lag time','Maximal Growth rate','Time of maximal growth rate','OD at max growth rate','time of left edge of minor peak','time of left edge of max peak','hight of minor peak','time of minor peak','time 25','Average growth rate from lag to max','average growth from lag to minor peak','Average growth from lag to time of 1/4 max peak height', 'area','Time from lag to max growth rate'}; for i=datasets out{i+1,1}=text{i+1}; if edge2(i)>0 out{i+1,2}=edge2(i); else out{i+1,2}=edgemax(i); end out{i+1,3}=Pmax(2,i); out{i+1,4}=Pmax(1,i); out{i+1,5}=mOD(i); out{i+1,6}=edge2(i); out{i+1,7}=edgemax(i); out{i+1,8}=P2(2,i); out{i+1,9}=P2(1,i); out{i+1,10}=time25(i); out{i+1,11}=avggrowth1(i); out{i+1,12}=avggrowth2(i); out{i+1,13}=avggrowth3(i); out{i+1,14}=area(i); if edge2(i)>0 out{i+1,15}=Pmax(1,i)-edge2(i); else out{i+1,15}=Pmax(1,i)-edgemax(i); end end xlswrite('growth.xls',out); G1=G(:,datasets); lG1=lG(:,datasets); Gi1=Gi(:,datasets); dG1=dG(:,datasets); dGOD1=dGOD(:,datasets); figure(1) clf; sp1=subplot(2,1,1); p1=plot(G1{:}); set(p1,'Marker', 'none','LineStyle','-','LineWidth',2); % legend([p1(1),p1(2),p1(3), p1(4)]); % set(sp1,'colororderindex',2); ylabel('O.D.'); xlabel('time (sec)'); sp2=subplot(2,1,2); p2=plot(Gi1{:},'LineWidth',2); hold on plot(lG1{:},'Marker', '.','LineStyle','none'); hold off; ylabel('Ln(O.D.)'); %set(sp2,'ColorOrderIndex',1); xlabel('time (sec)'); % legend([p2(1),p2(2),p2(3), p2(4)]); figure(2) sp3=subplot(2,1,1); p3=plot(dG1{:},'LineWidth',2);%,Gi1{1,i}); % set(sp3,'ColorOrderIndex',1); % mean(dGs{2,4}(10:25)) % get a mean average of ylabel('growth rate (sec^{-1})'); xlabel('time'); sp4=subplot(2,1,2); p4=plot(dGOD1{:},'LineWidth',2); %set(p4,'Marker', 'o'); % hold; % set(sp4,'ColorOrderIndex',1); % p5=plot(dGODs{:}); % set(p5,'Linewidth', 2); % hold off; ylabel('growth rate (sec^{-1})'); xlabel('O.D.'); % % % % figure(3) % clf; % % G2=G(:,7:end); % lG2=lG(:,7:end); % Gi2=Gi(:,7:end); % dG2=dG(:,7:end); % dGOD2=dGOD(:,7:end); % % sp12=subplot(2,1,1); % p12=plot(G2{:},'LineWidth',2); % set(p12,'Marker', 'none','LineStyle','-'); % % legend([p1(1),p1(2),p1(3), p1(4)]); % % set(sp1,'colororderindex',2); % ylabel('O.D.'); % xlabel('time (sec)'); % % sp22=subplot(2,1,2); % p22=plot(Gi2{:},'LineWidth',2); % hold on % plot(lG2{:},'Marker', '.','LineStyle','none'); % hold off; % ylabel('Ln(O.D.)'); % % set(sp2,'ColorOrderIndex',1); % xlabel('time (sec)'); % % legend([p2(1),p2(2),p2(3), p2(4)]); % % % figure(4) % sp32=subplot(2,1,1); % % p32=plot(dG2{:},'LineWidth',2);%,Gi2{1,i}); % % set(sp3,'ColorOrderIndex',1); % % mean(dGs{2,4}(10:25)) % get a mean average of % % % ylabel('growth rate (sec^{-1})'); % xlabel('time'); % % sp42=subplot(2,1,2); % p42=plot(dGOD2{:},'LineWidth',2); % %set(p4,'Marker', 'o'); % % hold; % % set(sp4,'ColorOrderIndex',1); % % p5=plot(dGODs{:}); % % set(p5,'Linewidth', 2); % % hold off; % ylabel('growth rate (sec^{-1})'); % xlabel('O.D.');