Not enough input arguments

4 次查看（过去 30 天）
Praveen Kumar Thanikonda
回答： madhan ravi 2020-7-14
im running below code in matlab online for my machine learning in coursera, can any one pls help for this error
function J = computeCostMulti(X, y, theta)
%COMPUTECOSTMULTI Compute cost for linear regression with multiple variables
% J = COMPUTECOSTMULTI(X, y, theta) computes the cost of using theta as the
% parameter for linear regression to fit the data points in X and y
% Initialize some useful values
m = length(y); % number of training examples
% You need to return the following variables correctly
J = 0;
% ====================== YOUR CODE HERE ======================
% Instructions: Compute the cost of a particular choice of theta
% You should set J to the cost.
J = (1/(2*m))*sum(((X*theta) - y).^2)
% =========================================================================
end
in command window the error is:
Not enough input arguments.
Error in computeCostMulti (line 7)
m = length(y); % number of training examples

请先登录，再回答此问题。

回答（1 个）

madhan ravi
madhan ravi 2020-7-14
Type the below in command window:
X = 1;
y = 2;
theta = 3;
J = computeCostMulti(X, y, theta)
doc function % please read it

类别

在 Help Center 和 File Exchange 中查找有关 Introduction to Installation and Licensing 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by