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Adding parameter to file name string when saving a figure using savefig or figsave

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Bakr Abdelgaliel
Bakr Abdelgaliel 2022-9-19
评论： Star Strider 2022-9-20
I am trying to save a figuer using figsave or savefig, with both string parameter and string. But nothing works.
CHANNEL=1;
dt = datestr(now,'yymmdd_HHMMSS');
filename = sprintf("C15_rhs_CalADC_ch%i_%s",CHANNEL,dt);
figsave(gcf,filename,'ac');
saveas(gcf,filename,'ac');
I need line 4 or line 5 to work to save the figuer as : C15_rhs_CalADC_ch6_220919_121449_ac

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Star Strider
Star Strider 2022-9-19
移动：Rik 2022-9-20
Ran in:
I am not certain what you want.
Perhaps —
CHANNEL=1;
dt = datestr(now,'yymmdd_HHMMSS');
filename = sprintf("C15_rhs_CalADC_ch%i_%s_",CHANNEL,dt) + "ac"
filename = "C15_rhs_CalADC_ch1_220919_140304_ac"
.
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更多回答（2 个）

Chunru
Chunru 2022-9-19
编辑：Chunru 2022-9-20
Ran in:
CHANNEL=1;
dt = datestr(now,'yymmdd_HHMMSS');
% filename = sprintf("C15_rhs_CalADC_ch%i_%s_ac",CHANNEL,dt); % with ac
% plot(randn(6,1))
% %figsave(gcf,filename,'png'); % figsave is a customized function?
% saveas(gcf,filename,'png') % use file type matlab recognizes
filename = sprintf("C15_rhs_CalADC_ch%i_%s",CHANNEL,dt); % with ac
plot(randn(6,1))
%figsave(gcf,filename,'png'); % figsave is a customized function?
saveas(gcf,filename+"_ac",'png') % use file type matlab recognizes
ls % the file is saved
C15_rhs_CalADC_ch1_220920_070606_ac.png
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Rik
Rik 2022-9-19
Presumably 'ac', 'dc', etc are stored in a variable. Why don't you put the variable name in there?
SomeVariable='ac';
filename = sprintf("C15_rhs_CalADC_ch%i_%s_%s",CHANNEL,dt,SomeVariable);

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Karim
Karim 2022-9-19
编辑：Karim 2022-9-19
Ran in:
Do you mean savefig? See below fo a method to create the filename as you indicate and a demo to save and open the figure.
CHANNEL = 1;
dt = datestr(now,'yymmdd_HHMMSS');
% concatenate the different strings, use _ as delimiter
filename = join( ["C15_rhs_CalADC_ch",num2str(CHANNEL),dt,"ac"] , "_" )
filename = "C15_rhs_CalADC_ch_1_220919_140322_ac"
figure
plot(rand(20,1))
axis equal
grid on
% save the figure
savefig(gcf, filename)
% try to open the figure
openfig(filename)
ans =
Figure (2) with properties: Number: 2 Name: '' Color: [1 1 1] Position: [671 661 577 433] Units: 'pixels' Show all properties
  1 个评论
Bakr Abdelgaliel
Bakr Abdelgaliel 2022-9-19
I know that, but i don't like to change the parameter (filename) because i am going to use it several times with 'ac', 'dc', 'ADC', 'DAC', etc..

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