Please I have a code but it keep saying Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.

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Sedulous12
Sedulous12 2022-6-10
评论： Sedulous12 2022-6-10
DETEnergyDetector(:,11) = DETEnergyDetector(:,11)/max(DETEnergyDetector(:,11));
figure('visible','off');
errorbar(DETEnergyDetectorE(:,3), DETEnergyDetector(:,11), ...
2*DETEnergyDetector(:,11).*DETEnergyDetector(:,12);'k.');

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Geoff Hayes
Geoff Hayes 2022-6-10
@Sedulous12 - there is a semi-colon instead of (perphaps) a comma:
2*DETEnergyDetector(:,11).*DETEnergyDetector(:,12);'k.'); % <--- semi-colon before 'k.'
Try changing this line to
errorbar(DETEnergyDetectorE(:,3), DETEnergyDetector(:,11), ...
2*DETEnergyDetector(:,11).*DETEnergyDetector(:,12), 'k.');
as that might remove the error.

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