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Plotting 4-D arrays in 2-D graph

Chun Zhang さんによって質問されました 2019 年 10 月 1 日
最新アクティビティ Jon
さんによって 編集されました 2019 年 10 月 1 日
Hello, I am a newbie to matlab. I have a question about generating a plot.
My code is as follows. The irfStd is a 3x20x800x33 4-D matrix. The size(irf1,4) = 800.
I am wondering why I can't generate plot using this code and matlab kept reporting 'Invalid expression. Check for missing multiplication operator, missing or unbalanced delimiters, or other syntax error. To construct matrices, use brackets instead of parentheses.'
Thanks in advance.
lb=floor(size(irf1,4)*.16)+1; % lower band
ub=ceil(size(irf1,4)*.84)+1; % upper band
plot(1:20,squeeze(median(irfStd(2,:,:,11),3)),'k',1:20,squeeze(irfStd(2,:,[lb ub],11)),'--k')...
axis tight, title('Inflation')

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1 件の回答

回答者: Jon
2019 年 10 月 1 日
編集済み: Jon
2019 年 10 月 1 日

The axis command and title command are not part of the plot command but you continued them on the same line without a separator. Just replace your last few lines with
plot(1:20,squeeze(median(irfStd(2,:,:,11),3)),'k',1:20,squeeze(median(irfStd(2,:,[lb ub],11),3))','--k')
axis tight,

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Chun Zhang 2019 年 10 月 1 日
Thank you for your quick answer but these commands work quite well in other plots.
2019 年 10 月 1 日
The commands plot, axis, and title must either be separated by commas, or by newlines.
When it worked you probably had a comma between '--k') and the ...
or before the word axis
,axis tight,title('Inflation')

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