MATLAB: How to round up and down

fix?MATLABraund

i have the folowing matrix

 ans =
         0         0         0         0   -0.2500
         0         0         0    0.7500         0
         0         0   -0.2500         0         0
         0    0.7500         0         0         0
   -0.2500         0         0         0         0

i need to round it so the diognal elements are -1 1 -1 1 -1 how can i do this?

Best Answer

sign(A).*ceil(abs(A))

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MATLAB: How to import .dat data

fid=fopen('yourfile.dat','r');
data=cell2mat(textscan(fid,'','CollectOutput',1,'CommentStyle','#'));
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looks like would do it. You'll end up w/ an array of double.

MATLAB: Round down and Round up

In R2014b, the round function now supports rounding to a specific number of digits:

minval = 0.4410; 
maxval = 0.8450;
r1_minval = round(minval, 1);
r1_maxval = round(maxval, 1);

If you don’t have R2014b, this works:

diground = @(x,d) round(x*10^d)/10^d;
r2_minval = diground(minval,1);
r2_maxval = diground(maxval,1);

Best Answer

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MATLAB: How to import .dat data

MATLAB: Round down and Round up

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