<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hi all,<div><br></div><div>I have 3 questions about the use of ATpy:</div><div><ul class="MailOutline"><li>How to add a leading "#" to the header of the Table? It is possible to read tables with a header like "# erosid Ra Dec MagR", but writing such a table removes the "#".</li><li>How to replace in a table an entire column by the content of a single-column asciitable ?</li></ul><div><br></div><div>Coding like:</div><div><br></div><div>Data = atpy.Table(Catalog, type='ascii', numpy=False)<br>DataDistort = Data<br>RA, DEC = asciitable.read(RAdec, delimiter='\n', Reader=asciitable.NoHeader, numpy=False), asciitable.read(DECdec, delimiter='\n', Reader=asciitable.NoHeader, numpy=False)<br>DataDistort.Ra = RA[0]<br>DataDistort.Dec = DEC[0]</div><div><br></div><div>put the first value of RA/DEC on all the rows of DataDistort.Ra/Dec.</div><div><br></div><div>Finally:</div><div><ul class="MailOutline"><li>How to change the format of a column? I didn't find anything to force the writing of trailing zeros.</li></ul></div><div><br></div></div><div>Thanks for your help,</div><div><br></div><div>Cheers</div><div>Jean-Baptiste</div></body></html>