How do i keep Matlab from rounding a number so i can put it in a GUI text box

When i do the following:

[column, row] = ginput(1);

newRow = round(row);

newColumn = round(column);

r = YellowFish(newRow, newColumn,1);
g = YellowFish(newRow, newColumn,2);
b = YellowFish(newRow, newColumn,3);

p = ((.02989*r + 0.587*g + 0.114*b)/k)/255;

my p value always ends up a 1 or 0 i am trying to put the actual value in a text box within a GUI but it keeps putting 1 and 0 and not the actual number.

Answer 1

[Walter Roberson]

p = ((.02989*double(r) + 0.587*double(g) + 0.114*double(b))/k)/255;

[Jan]

Exactly. When YellowFish has an integer type, the result is an integer also:

x = uint8(10)
x * pi
double(x) * pi