lvetica, Arial, sans-serif; font-style: normal; font-size: 24px; font-weight: normal; text-align: left;  }
.S1 { margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: rgb(0, 0, 0); font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: normal; text-align: left;  }</style></head><body><div class = rtcContent><h1  class = 'S0'><span>observation_matrix_formation</span></h1><div  class = 'S1'><span>This function outputs th