Erase lines where NaN is included - fprintf

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Tim Tolman
Tim Tolman 2015-4-3
评论： Tim Tolman 2015-4-3
Hi.
I can't figure out how to erase/delete lines from my fprintf, where NaN is included. Google only tells me how to erase NaN, but I need to erase the hole line, where NaN is included.
This is my code:
% X axis filename_x = 'Xakse.xlsx' ; x = xlsread(filename_x);
% Y axis filename_y = 'Yakse.xlsx' ; y = xlsread(filename_y);
% Z axix filename_z = 'input_til_gcode.xlsx' ; z = xlsread(filename_z);
s=5;
f = fopen('learningbydoing.txt', 'w'); Valueofx_mm = zeros(1,135); Valueofy_mm = zeros(1,135); Valueofz_mm = zeros(1,135);
for i=1:1:135
x_mm = x(i)*s;
Valueofx_mm(i) = x_mm;
y_mm = y(i)*s ;
Valueofy_mm(i) = y_mm;
z_mm = z(x(i),y(i));
Valueofz_mm(i)= z_mm;
fprintf(f,'G01 %2.2f %2.2f 0\n' ,Valueofx_mm(i), Valueofy_mm(i));
fprintf(f,'G01 %2.2f %2.2f %2.2f\n' ,Valueofx_mm(i), Valueofy_mm(i),Valueofz_mm(i));
end
fclose(f);
A part of the result is:
....
G01 85.00 85.00 NaN
G01 90.00 90.00 0
G01 90.00 90.00 NaN
G01 95.00 95.00 0
G01 95.00 95.00 NaN
G01 100.00 100.00 0
G01 100.00 100.00 18.01
G01 105.00 105.00 0
G01 105.00 105.00 19.25
..
How do I erase/delete the three lines (marked as bold)?
Best regards Tim

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采纳的回答

Mahdiyar
Mahdiyar 2015-4-3
Hi Tolman
To delet delete the row containing Nan, first, you have to detect the Nan you can use the command "isnan".
Regards,

更多回答（1 个）

Image Analyst
Image Analyst 2015-4-3
Just don't print them in the first place by checking if it's nan before printing:
if ~isnan(Valueofy_mm(i))
fprintf(f,'G01 %2.2f %2.2f 0\n' ,Valueofx_mm(i), Valueofy_mm(i));
end
if ~isnan(Valueofz_mm(i))
fprintf(f,'G01 %2.2f %2.2f %2.2f\n', ...
Valueofx_mm(i), Valueofy_mm(i),Valueofz_mm(i));
end

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