MATLAB: How to convert a variable whose value is double to integer or to float

doubleround

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

Best Answer

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.
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