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Why do I receive 'You must pass class labels as a vector.' error?

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Daniil Podtesov
Daniil Podtesov 2022-10-15
评论： Hiro Yoshino 2022-10-15
clear; clc;
X_train = readmatrix("x_train.csv",'NumHeaderLines',1);
X_test = readmatrix("x_test.csv",'NumHeaderLines',1);
y_train = readmatrix("y_train.csv",'NumHeaderLines',1);
y_test = readmatrix("y_test.csv",'NumHeaderLines',1);
model = fitcsvm(X_train, y_train, 'KernelFunction','rbf');
Here's my code. After trying to run I receive this error (error is in attached screenshot):

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回答（1 个）

Hiro Yoshino
Hiro Yoshino 2022-10-15
It said the y_train is not a vector.
The argument should be any on of: categorical array, string array, character array, logical array, numerical array, cell array.
https://jp.mathworks.com/help/stats/fitcsvm.html?s_tid=doc_ta#bt9w6j6-Y
You should make sure you give right data for x and y respectively.
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Daniil Podtesov
Daniil Podtesov 2022-10-15
I see, in Python Y was two cols (id, boolean), that's why I remained this column. Thank You, I'll try the solution

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