我正在嘗試使用 Matlab 生成折線圖，但該線在最后一點終止，并且沒有一直到原點。有什么辦法可以使這條線超出代碼中的點嗎？
我附上了我目前正在使用的代碼，以及圖表現在的樣子以及我希望它看起來如何的圖片。
%Enter Data
fnet = [0.465, 0.560, 0.670, 0.763, 0.870, 0.971, 1.063];
faccel = [0.434, 0.514, 0.612, 0.684, 0.776, 0.850, 0.915];
asys = [0.4963, 0.6034, 0.7074, 0.8088, 0.9210, 1.030, 1.138]
mh = [0.050, 0.06, 0.07, 0.08, 0.09, 0.1, 0.11]
x = fnet;
y = asys;
%Model Equation
model = 'm*x'
%the model can be changed, ex. m*x^2
IV = 'x'
DV = 'y'
%Create and perform curve fit
newfit = fittype(model, 'Independent', IV, 'Dependent', DV);
%result and goodness of fit, prime symbol converys rows to columns
[result, gof] = fit(x', y', newfit, 'StartPoint', 1)
%plot fits and data points, create plot object for formatting
p = plot(result, x, y);
%style the data points
p(1).MarkerSize = 10;
p(1).Marker = '.';
p(1).MarkerFaceColor = 'blue';
%p(1).MarkerEdgeColor = 'green';
%style the line of best fit
p(2).LineWidth = 1;
p(2).Color = 'black';
%Create graph object, set formatting to latex
graph = gca;
set(graph, 'defaultTextInterpreter', 'latex');
set(legend, 'visible', 'off');
%format title and subtitle
graph.Title.String = {'System Acceleration vs. Net Force on System', 'in Modified Atwood Machine'};
graph.Title.FontSize = 16;
%subtitle, where we will place our equation and statistics
%specifically, the equation w/ units, r squared, slope with plusminus %
graph.Subtitle.Interpreter = 'latex';
graph.Subtitle.String = '$a_{sys} = 1.064 m^{-1}F_{net}, \, r^2=0.9994, m=1.064 \pm 0.007$';
graph.Subtitle.FontSize = 13;
%format x and y axes
graph.XLabel.Interpreter = 'latex';
graph.XLabel.String = '$F_{net} \: (N)$';
graph.XLabel.FontSize = 15;
graph.XLim = [0,1.5];
graph.XGrid = 'on';
graph.XMinorGrid = 'on';
graph.XMinorTick = 'on';
graph.YLabel.Interpreter = 'latex';
graph.YLabel.String = '$a_{sys} \: (\frac{m}{s^2})$';
graph.YLabel.FontSize = 15;
graph.YLim = [0,1.5];
graph.YGrid = 'on';
graph.YMinorGrid = 'on';
graph.YMinorTick = 'on';
uj5u.com熱心網友回復：
而不是plot直接在 fitresult物件上使用，您可以plot使用更多控制呼叫并result直接評估該行
替換這個：
p = plot(result, x, y);
有了這個：
hold on
p(1) = plot( x, y );
p(2) = plot( [0,2.2], feval(result, [0,2.2]) );
plot請注意，如果您愿意，現在可以在通話期間添加標記和線路選項，而不是更新p(1)和p(2)回顧。
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