如何得到电流-电压曲线的一次微分曲线呢。
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本人的实验数据是TXT文件格式的,两列数据分别是电流和电压,怎么对电流电压曲线取微分,得到一次微分曲线呢?
plot(TXT(:,1), TXT(:,2))
xlabel('votage(V)')
ylabel('current(nA)')
figure;
plot(TXT(:,1), smooth(TXT(:,2),17,'sgolay',2))
xlabel('votage(V)')
ylabel('smoothed current(nA)')
legend('17')
这是画图和smooth的程序,接下来不会写了,请大佬帮帮忙。
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