<div dir="ltr">HI,<div>How to do image rationing between two bands 5/2 of landsat in grass. I used this command ( r.mapcalc "ratio5_2=1.0*p126r046_7t20010929_z48_nn50/p126r046_7t20010929_z48_nn20"</div><div> d.erase</div>

<div>d.rast ratio5_2)<br clear="all"><div>but it doesn't work </div>-- <br><div dir="ltr"><font size="1"><i><span style="font-family:Verdana,Arial,Helvetica,sans-serif;line-height:26px;color:rgb(0,0,0)"><a title="view quote" href="http://www.brainyquote.com/quotes/quotes/e/erichfromm100031.html" style="text-decoration:none;color:rgb(0,51,153)!important" target="_blank">The successful revolutionary is a statesman, the unsuccessful one a criminal</a>.</span><span style="color:rgb(0,0,0);font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;line-height:20px"> </span><span style="color:rgb(0,0,0);font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;line-height:20px"><br>

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