How can I multiply axis values by 1000 without changing the data?

조회 수: 179 (최근 30일)
onamaewa
onamaewa 2019년 4월 11일
댓글: Nawfal Al-Zubaidi 2023년 6월 5일
With the script shown below,
figure()
for CH = 2:33
Y = (avg(:,CH) - avgBG(CH) + SP);
hold on
plot(avg(:,1), Y)
xlim([0 0.3]); xlabel('Time (s)');
ylim([-0.034 0.034]); ylabel('Position (m)');
SP = SP + 2/1000;
end
I've created this figure:
wfpp.jpg
I want to change the Y-axis values on the figure to be multiplied by 1000.
I tried Yticks, but I don't think I've implemented it correctly. Any suggestions?

답변 (2개)

Rik
Rik 2019년 4월 11일
You can either multiply the y-values with 1000, or use the YTickLabels:
ticks=get(gca,'YTicks');%retrieve current ticks
ticks=ticks*1000;%multiply
ticks=cellfun(@num2str,tick,'UniformOutput',false);%convert to cellstr
set(gca,'YTickLabels',ticks)%set new tick labels
  댓글 수: 1
Rik
Rik 2019년 4월 16일
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Rob Lander
Rob Lander 2021년 1월 29일
편집: Rob Lander 2021년 1월 29일
Here's another approach that seems to work (shown here for the case where you wish to change the labels for three axes):
ax = gca;
tick_scale_factor = 1000;
ax.XTickLabel = ax.XTick * tick_scale_factor;
ax.YTickLabel = ax.YTick * tick_scale_factor;
ax.ZTickLabel = ax.ZTick * tick_scale_factor;
A problem with this approach is that if you resize the figure this can cause the number of tick labels to change, which, in turn, will lead to incorrect label values. The only work-around that I know of to solve this problem is to re-exectute the code above after re-sizing.

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