Matlab - Cambio de valores de una matriz

Matriz inicial = [10,22,30,34,90,50;50,70,34,80,60,82;45,0,60,94,76,20;55,50,65,60,11,69;75,0,91,58,0,50;50,60,85,23,24,59]

Matriz final = [10,22,30,34,90,60;60,70,34,80,50,82;45,0,50,94,76,20;55,60,65,50,11,69;75,0,91,58,0,60;60,50,85,23,24,59]

clear

Matrizinicial = [10,22,30,34,90,50;50,70,34,80,60,82;45,0,60,94,76,20;55,50,65,60,11,69;75,0,91,58,0,50;50,60,85,23,24,59]

u60=find(Matrizinicial==60);

Matrizinicial(u60)=inf;

u50=find(Matrizinicial==50);

Matrizinicial(u50)=60;

u60=find(Matrizinicial==inf);

Matrizinicial(u60)=50

>> cambiar_valores

Matrizinicial =

    10    22    30    34    90    50

    50    70    34    80    60    82

    45     0    60    94    76    20

    55    50    65    60    11    69

    75     0    91    58     0    50

    50    60    85    23    24    59

Matrizinicial =

    10    22    30    34    90    60

    60    70    34    80    50    82

    45     0    50    94    76    20

    55    60    65    50    11    69

    75     0    91    58     0    60

    60    50    85    23    24    59