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<h1 class="declaration">function ssastat</h1>
<p>
Returns statistics for ssa. <br><br><b><font size=+2>Arguments</font></b><br> like ssa. The resulting array will be [xshift, yshift, min, max, flux, fwhm, flag].
<br><br><b><font size=+2>Syntax</font></b><br>
<i>result</i> = ssastat(X, XCENTER, YCENTER, SKY, FLAT, DPL, MASK [, METHOD])
<br><br><b><font size=+2>Arguments</font></b><br>
<table CELLSPACING=0 CELLPADDING=0>
<tr VALIGN=TOP><td nowrap>X: </td>
<td> A FITS datacube</td></tr>
<tr VALIGN=TOP><td nowrap>XCENTER: </td>
<td> The pixel where to shift in the first dimension</td></tr>
<tr VALIGN=TOP><td nowrap>YCENTER: </td>
<td> The pixel where to shift in the second dimension</td></tr>
<tr VALIGN=TOP><td nowrap>SKY: </td>
<td> A sky to be subtracted</td></tr>
<tr VALIGN=TOP><td nowrap>FLAT: </td>
<td> A flatfield to be multiplied</td></tr>
<tr VALIGN=TOP><td nowrap>DPL: </td>
<td> A dead pixel list to be applied</td></tr>
<tr VALIGN=TOP><td nowrap>MASK: </td>
<td> The peak pixel will be searched for in an image multiplied by this mask</td></tr>
<tr VALIGN=TOP><td nowrap>METHOD: </td>
<td> Optional, controls how the SSA will be done:</td></tr>
<tr VALIGN=TOP><td nowrap>METHOD = 0: </td>
<td> Shift the brightest pixel to XCENTER, YCENTER (default)</td></tr>
<tr VALIGN=TOP><td nowrap>METHOD = 1: </td>
<td> Integer shift the centroid to XCENTER, YCENTER</td></tr>
<tr VALIGN=TOP><td nowrap>METHOD = 2: </td>
<td> Subpixel shift the centroid to XCENTER, YCENTER</td></tr>
<tr VALIGN=TOP><td nowrap>METHOD < 0: </td>
<td> the same is done as if METHOD were set to 0, but the brightest pixel is searched in a smoothed version of the image. The smoothing is done by convolving with a gaussian of fwhm the negative of method.</td></tr>
</table>
<br><br><b><font size=+2>See also</font></b><br>
<a href = "function_ssa.html">function ssa</a><br>
<a href = "function_sssa.html">function sssa</a><br>
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