在Matlab中使用rand函数时出错 [英] error using rand function in matlab

问题描述

在运行以下代码段Matlab代码时

while running following snippet matlab code

file_name=''B.bmp'';
key=double(imread(file_name))./256;

rand(''state'',key);

matlab抛出以下错误:

following error was thrown by matlab:

??? Error using ==> rand
State must be a double scalar.

谁能帮我解决这个问题，我是Matlab的新手.

can anyone please help me on this i am new to matlab.

推荐答案

在这里进行解释:
http://www.mathworks.com/help/techdoc/math/brnuahp.html [ ^ ]，
http://www.mathworks.com/help/techdoc/math/bruv81b.html [ ^ ].

您做的事情很奇怪:您传递的是字符串"state"，而不是传递两个整数(请参见上面引用的页面的第二个示例).我什至无法想象你是什么意思……:-)

—SA

This is explained here:
http://www.mathworks.com/help/techdoc/math/brnuahp.html[^],
http://www.mathworks.com/help/techdoc/math/bruv81b.html[^].

You are doing something weird: instead of passing two integers (please see the second of the pages referenced above, with samples), you pass the string ''state''. I cannot even imagine what did you mean by that… :-)

—SA

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