Print first few lines of output
24 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
alpedhuez
el 23 de En. de 2021
Comentada: Walter Roberson
el 24 de En. de 2021
Suppose I do
summary(T)
Then it will print out statistics of all the variables in the table, which is good. But at the same time it will output all the information and will create "auto-scroll" that is very cumbersome. Thus I want to print out the first five lines of the output.
head(summary(T),5)
does not work.
0 comentarios
Respuesta aceptada
Walter Roberson
el 23 de En. de 2021
Editada: Walter Roberson
el 23 de En. de 2021
summary(T(:,1))
If summary() was just being used as an example, then
temp = regexp(evalc("Put The Command Here"), '\n', 'split');
fprintf('%s\n', temp{1:min(end,5)});
such as
temp = regexp(evalc("summary(T)"), '\n', 'split');
fprintf('%s\n', temp{1:min(end,5)});
You can build a function to do this for you.
5 comentarios
Walter Roberson
el 24 de En. de 2021
T = table(randn(20,1), rand(20,1)*5-2);
HEAD('summary(T)', 8)
HEAD('T+1', 4)
function details___ = HEAD(COMMAND__, N__)
if nargin < 2; N__ = 5; end
try
CMD__ = "evalin('caller', '" + COMMAND__ + "')";
details__ = evalc(CMD__);
catch ME__
details__ = getReport(ME__);
end
detail_lines = regexp(details__, '\n', 'split');
details__ = strjoin(detail_lines(1:min(N__,end)), '\n');
if nargout == 0
disp(details__);
else
details___ = details__;
end
end
Walter Roberson
el 24 de En. de 2021
Note that the code was designed so that if an error message is the output of the command, then only the first N lines of the error message are output.
The code is designed so that you can assign the output of HEAD() to a variable, but that if you do not do so then it outputs to the display.
Más respuestas (0)
Ver también
Categorías
Más información sobre Develop Apps Using App Designer en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!