The function interp1() provided in MATLAB does not have the Runge phenomenon.( ) A、正确 B、错误
y=[2,3,4];x=[1,2,3];是这样的：插值分内插和外插。如果要求xx对应的yy的值，若此xx在你的x范围内，应当算是内插。比如2.9就是在x=[1,2,3]内，它应当是内插。内插matlab有好多种方法。以下几个都可以。z=interp1(x,y,2.9,'nearest')z=interp1(x,y,2.9,'linear')z=inter...
Error in function interp1: Sample points must be... Learn more about interpolation, error, line 188
Interpolate the function at the query points and plot the result. Get figure vq1 = interp1(x,v,xq); plot(x,v,'o',xq,vq1,':.'); xlim([0 2*pi]); title('(Default) Linear Interpolation'); Now evaluate v at the same points using the 'spline' method. Get figure vq2 = int...
Interpolate the function at the query points and plot the result. Get figure vq1 = interp1(x,v,xq); plot(x,v,'o',xq,vq1,':.'); xlim([0 2*pi]); title('(Default) Linear Interpolation'); Now evaluate v at the same points using the 'spline' method. Get figure vq2 = int...
Interpolate the function at the query points and plot the result. Get figure vq1 = interp1(x,v,xq); plot(x,v,'o',xq,vq1,':.'); xlim([0 2*pi]); title('(Default) Linear Interpolation'); Now evaluate v at the same points using the 'spline' method. Get figure vq2 = int...
Open in MATLAB Online ThemeCopy % Current date = June 03, 2020 % Matlab version = 9.6.0.1072779 (R2019a) % User name = Nikolaus Koopmann function [yq,p] = interp1_lin(x,y,xq) validateattributes(x,{'double'},{'increasing','vector'}) % slow %% lin. regr. X = [ones(length(x...
插值法又称“内插法”，是利用函数f (x)在某区间中已知的若干点的函数值，作出适当的特定函数，在...
Matlab一维插值interp1例子及可视拟合界面 热度: interp1(interp1) functionvarargout=interp1(varargin) %interp11-dinterpolation(tablelookup) yiinterp1%=(x,y,xi)interpolatestofindyi,thevaluesofthe %underlyingfunctionyatthepointsinthearrayxi.xmustbea ...
是多少你执行一下就知道了。linear是线性插值，采用已知数据两点之间连线的方式，根据要插值的点在线上的位置计算插值结果，这是比较常用的。nearest是最近点插值，直接找到最近的数据点，用该点的值直接代替，不太常用。