Datetime index localisation in matrix with dsearch?

Specific domains Data handling
8

Hello Stephane,
thank you for overloading dsearch, indeed it performs what I want.
I also tested the interpolation approach, adapted from your previous post, which performs well :

function yp= interp0(x,y,xp)
    //Stephane Mottelet  décembre 2023 - 0-D interpolation, piecewise constant function definition - https://scilab.discourse.group/t/0-d-interpolation-piecewise-constant-function-definition/308

    //    i = floor(interp1(x,1:length(x),xp,"linear","edgevalue"))
    i = floor(linear_interpn(xp,x,1:length(x),"C0"))   //a priori plus rapide qu'interp1

    yp = y(i)    
endfunction
//------------------------------------------------------------------------------

function ip= interp0dtm(dtm,dtmp)
    //trouver les index des intervalles bornes dtm ([..[) contenant dtmp

    dtn= dtm.date+dtm.time/3600/24
    dtnp= dtmp.date+dtmp.time/3600/24

    ip= interp0(dtn,1:length(dtn),dtnp)

endfunction
//-----------------------------------------------------------------------------

Thanks,
David

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