vector display

when i use disp(im), where im is image vector after PCA, I get output as: 1.0e+003 *

1.234 -0.964 ....

what is 1.0e+003 * in the beginning??

Answer 1

[Arnaud Miege]

Have a look at the format function, for example try:

format short g
disp(im)

HTH,

Arnaud

Answer 2

[Jan]

DISP tries to be smart and occupy as small space in the command window as possible. If all the data have a magnitude far appart from 1.0, DISP rescales the values and shows the scaling factor on top of the values. Possible solutions:

format long g

or

fprintf([repmat('%g ', 1, size(im, 2)), '\n'], transpose(im));