10-16-2009
Calculate average of each of position of contents in a huge file
My input:
>AAA_100
10 20 50 60 10 100 15 10
>AAA_100
20 20 50 60 20 100 15 10
>AAA_100
10 20 50 60 40 100 15 10
>AAA_100
40 20 50 60 10 100 15 10
.
.
.
My Output
20 20 50 60 20 100 15 10
If I have a long list of file. I want to calculate average of each position inside the contents one by one.
Anybody got any idea about it?
Thanks for all of the suggestions.
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LEARN ABOUT PHP
imagelayereffect
IMAGELAYEREFFECT(3) 1 IMAGELAYEREFFECT(3)
imagelayereffect - Set the alpha blending flag to use the bundled libgd layering effects
SYNOPSIS
bool imagelayereffect (resource $image, int $effect)
DESCRIPTION
Set the alpha blending flag to use the bundled libgd layering effects.
PARAMETERS
o $
image -An image resource, returned by one of the image creation functions, such as imagecreatetruecolor(3).
o $effect
- One of the following constants:
o IMG_EFFECT_REPLACE - Use pixel replacement (equivalent of passing TRUE to imagealphablending(3))
o IMG_EFFECT_ALPHABLEND - Use normal pixel blending (equivalent of passing FALSE to imagealphablending(3))
o IMG_EFFECT_NORMAL - Same as IMG_EFFECT_ALPHABLEND.
o IMG_EFFECT_OVERLAY - Overlay has the effect that black background pixels will remain black, white background pixels will
remain white, but grey background pixels will take the colour of the foreground pixel.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
imagelayereffect(3) example
<?php
// Setup an image
$im = imagecreatetruecolor(100, 100);
// Set a background
imagefilledrectangle($im, 0, 0, 100, 100, imagecolorallocate($im, 220, 220, 220));
// Apply the overlay alpha blending flag
imagelayereffect($im, IMG_EFFECT_OVERLAY);
// Draw two grey ellipses
imagefilledellipse($im, 50, 50, 40, 40, imagecolorallocate($im, 100, 255, 100));
imagefilledellipse($im, 50, 50, 50, 80, imagecolorallocate($im, 100, 100, 255));
imagefilledellipse($im, 50, 50, 80, 50, imagecolorallocate($im, 255, 100, 100));
// Output
header('Content-type: image/png');
imagepng($im);
imagedestroy($im);
?>
The above example will output something similar to:[NOT DISPLAYABLE MEDIA]Output of example : imagelayereffect()
NOTES
Note
This function requires GD 2.0.1 or later (2.0.28 or later is recommended).
PHP Documentation Group IMAGELAYEREFFECT(3)