Hello I would like to find two values of x similar/close to 0.71 for the same value of y as shown in the image file.

Hi so basically, I want to find two values of x similar/close to that of roughly 0.71 for the same value of y within the matrix y. I've included the data for y where x is just 0 to 100 as shown in the image. For the purpose of showing the process, writing your own code on a different plot just to show the process would be great aswell.

y = [

0.999999995023660

0.999999991814002

0.999999986534167

0.999999977848923

0.999999963561839

0.999999940059818

0.999999901399380

0.999999837803596

0.999999733189591

0.999999561101321

0.999999278019104

0.999998812353973

0.999998046343801

0.999996786273318

0.999994713488149

0.999991303818118

0.999985695041822

0.999976468900306

0.999961292600459

0.999936329330312

0.999895269205729

0.999827736922888

0.999716677048434

0.999534065499866

0.999233889114869

0.998740689127159

0.997930962721728

0.996603231519677

0.994430568318047

0.990887148273905

0.985139441545625

0.975897419522911

0.961242086932429

0.938501414780253

0.904352722045625

0.855442758499713

0.789734116125554

0.708205898819358

0.615675218341402

0.519607646564184

0.427469716233927

0.344517090802763

0.273164773122668

0.213579071853642

0.164616002761310

0.124573735573943

0.0916395792308422

0.0640988427075723

0.0404006895873969

0.0191501289989020

0.000934022953099406

0.0210751530764663

0.0424995219595119

0.0664967361160067

0.0944749552272853

0.128000821681603

0.168802624911376

0.218694474841229

0.279349354068681

0.351825011494707

0.435784177170636

0.528558304967223

0.624631946570968

0.716424266944032

0.796615426401297

0.860731637474228

0.908136788561783

0.941065361802927

0.962913761580377

0.976959588334282

0.985803168481676

0.991297546938569

0.994682667150841

0.996757464203710

0.998025087243329

0.998798043885167

0.999268805858635

0.999555310312482

0.999729598844435

0.999835594743161

0.999900046985199

0.999939234132356

0.999963058583682

0.999977542504495

0.999986347712765

0.999991700588981

0.999994954691024

0.999996932903540

0.999998135481922

0.999998866541936

0.999999310960485

0.999999581126691

0.999999745363194

0.999999845204038

0.999999905898174

0.999999942794675

0.999999965224382

0.999999978859598

0.999999987148564

0.999999992187500]

Answer 1

[KSSV]

x = (1:length(y))' ;
idx = knnsearch(y,0.7,'k',2) ; 

plot(x,y,'r')
hold on
plot(x(idx),y(idx),'*k')

[Scuba]

Thank you

[KSSV]

Thanks is accepting the answer .. :)

[Scuba]

Appologies for that...