Finding Potential Sites for Small-Scale Hydro Power in Uganda: a ...

Frame creationThis is made in order to avoid pixel values along the edges.The algorithm must not calculate cells exceeding x-min/max or y-min/max.for a=1:1;%loop only the first rowfor b=1:col;%loop every columndata(1,b)=0;%set the cell values to zero, to create a border above the dataendendfor c=1:row;%loop every rowdata( c,1)=0;data( c,col)=0;%set the cell values of the first and last column to zero, to create%borders to the left and right of the data.endfor d= row:row;%loop only last row.for e=1:col;%loop every column.data(row,e)=0;%set the cell values to zero, to finalize the frame.endendCreation and definition of variables and matricescells = sum(data(:)>0);%counts the number of cells in "data" greater than zero.output=zeros(row,col);%creates a matrix to write the output into.rivercells=zeros(cells,3);%creates a matrix of 3 x "cells" and fills it with zeros.%It will soon contain all values and coordinates from "data".order=zeros(cells,3);% creates a matrix of 3 x "cells" and fills it with zeros.%It will soon contain ranked coordinates from "rivercells".%Highest elevation is ranked as number 1 in "order".rivercells_row=0;75