How to use bootci with lsqcurvefit or fmincon?

tdata=1:405;

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120.463000000000 120.710000000000 122.266000000000 115.140000000000 132.897000000000 130.949000000000 128.778000000000 116.947000000000 121.747000000000 129.329000000000 118.692000000000 153.579000000000 133.497000000000 144.904000000000 150.173000000000 145.240000000000 144.474000000000 162.840000000000 145.949000000000 137.603000000000 144.484000000000 145.829000000000 132.495000000000 144.575000000000 80.9440000000000 45.5720000000000 133.957000000000 148.880000000000 139.791000000000 206.176000000000 166.452000000000 157.405000000000 152.055000000000 156.034000000000 157.678000000000 144.897000000000 151.577000000000 93.4420000000000 167.215000000000 164.914000000000 162.841000000000 177.452000000000 146.043000000000 144.260000000000 148.575000000000 151.361000000000 145.549000000000 145.107000000000 147.089000000000 147.860000000000 149.819000000000 78.2350000000000 164.739000000000 184.439000000000 155.760000000000 149.766000000000 145.183000000000 143.797000000000 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qi=ydata(1,1);

beta=1;

modelfun = @(a,x)1/gamma(beta).*qi./(1-(1-(1+a(1)./a(2).*x).^(a(2))));

a0=[0.5,1];

lb = [0,0];

ub = [];

theta = @(predictor,response)nlinfit(predictor,response,modelfun,a0);

[ci, bootstat] = bootci(1000,{theta,tdata,ydata},'Alpha',0.1);

%my question is what if i change nlinfit to lsqcurvefit with lowerbound and upperbound? what will be the %functionhandle theta? Thank you for your help!

%I tried :

theta = @(predictor,response)lsqcurvefit(modelfun,a0,tdata,ydata,lb,ub)

%it only returns single value with multiple times.