How can I convert a variable whose value is double to integer or to float?

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How can I convert a variable whose value is double to integer or to float? So I think I can fix the problem:

Undefined function 'roundn' for input arguments of type 'double'.

Error in plot_litho_061015 (line 58) drawLine([0 roundn(z1),2], [0 min(z1)]); hold on; % Vertical line at x = 0;

ps: z1 value= 2601x1double

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Answer 1

bio lim 2015-7-21

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z1 = rand(2601,1);
int_z1 = int8(z1);

I don't really understand what you mean by "float". Are you refering to single-precision? If so,

single(z1)

In general, MATLAB functions usually require doubles.

Marco Ottina 2022-12-2

yeah, "float" is the name of "single-precision" in C and C++

Answer 2

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double Z = 2.55555