827;&#34892;&#24402;&#19968;&#21270;&#22788;&#29702;</span>
<span class="comment">% mapminmax&#20026;matlab&#33258;&#24102;&#30340;&#26144;&#23556;&#20989;&#25968;</span>
[up,up_ps] = mapminmax(Up);
up_ps.ymin = 100;
up_ps.ymax = 500;
<span class="comment">% &#23545;Up&#36827;&#34892;&#24402;&#19968;&#21270;</span>
[up,up_ps] = mapminmax(Up,up_ps);
<span class="comment">% &#30011;&#20986;Up&#24402;&#19968;&#21270;&#21518;&#30340;&#22270;&#20687;</span>
figure;
plot(up,<span class="string">'gx'</span>);
titl