Hi Selcuk Reis: Setting up a text file should be in the following format. Easting, Northing, Class number and Class name within single quote. NO TAB;ONLY SPACE Example of a groundtruthing text file (class number should be in sequence 1,2,3,4,5�)
480925.63 3615125.43 1 'Water' 478715.11 3626414.91 1 'Water' 479188.79 3624362.27 2 'Shallow Water' 485504.58 3621993.85 3 'Grass' 476820.37 3616941.22 3 'Grass' Import the *.txt file from Utilities->Import Vector & GIS Formats ->ASCII points with attributes (Save as *.erv vector file) View->Statistics->Confusion Matrix Load *.erv or a classified image (Therefore can check Image to Image) Setting up a Reference Dataset To use for your ground truthing. This may be a vector file imported using Utilities / Import Vector and GISformats / ASCII Points with Attributes or a classified .ers file Then do the following: View � Statistics � ConfusionMatrix� Load your Reference Data (Groundtruthed .erv file) Load your Classified image Choose (a) Raw Count (b) User�s Accuarcy (measure of Commission error) (c) Producer�s Accuracy (Errors of omission) to display the accuracy All the best, Abdullah Mah > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]] > Sent: Saturday, 10 November 2001 7:01 PM > Subject: ERMAPPER-L Daily Digest > > > ---------------------------------------------------------------------- > > From: "Selcuk Reis" <[EMAIL PROTECTED]> > Subject: confusion > Date: Fri, 9 Nov 2001 16:04:39 +0200 > Reply-To: [EMAIL PROTECTED] > This is a multi-part message in MIME format. > > ------=_NextPart_000_001F_01C16938.3C56EFA0 > Content-Type: text/plain; > charset="iso-8859-1" > Content-Transfer-Encoding: quoted-printable > > I have a problem abou calculate the confusion matrix, user's and = > prodecer's accuracy. I could not identify the reference dataset In the = > confusion matrix setup box. How can I provide reference dataset in = > Ermapper format. I tried to import ArcInfo format using Utilities/import = > vektor and GISformats with Attributes box, but could not import this = > ArcInfo data. Anyone can tell me info about the reference dataset = > format? > =20 > Selcuk Reis > Karadeniz Technical Universty > Department of Geodesy > Tlf: 0 462 377 36 52 > =20 > > ------=_NextPart_000_001F_01C16938.3C56EFA0 > Content-Type: text/html; > charset="iso-8859-1" > Content-Transfer-Encoding: quoted-printable > > <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> > <HTML><HEAD> > <META content=3D"text/html; charset=3Diso-8859-1" = > http-equiv=3DContent-Type> > <META content=3D"MSHTML 5.00.2920.0" name=3DGENERATOR> > <STYLE></STYLE> > </HEAD> > <BODY bgColor=3D#ffffff> > <DIV><FONT face=3DArial size=3D2>I have a problem abou calculate = > the confusion=20 > matrix, user's and prodecer's accuracy. I could not identify the = > reference=20 > dataset In the confusion matrix setup box. How can I provide reference = > dataset=20 > in Ermapper format. I tried to import ArcInfo format using = > Utilities/import=20 > vektor and GISformats with Attributes box, but could not import this = > ArcInfo=20 > data.<FONT face=3DArial size=3D2> Anyone can tell me info about = > the reference=20 > dataset format?</FONT> > <DIV><FONT face=3DArial size=3D2></FONT> </DIV> > <DIV><FONT face=3DArial size=3D2>Selcuk Reis</FONT></DIV> > <DIV><FONT face=3DArial size=3D2>Karadeniz Technical = > Universty</FONT></DIV> > <DIV><FONT face=3DArial size=3D2>Department of Geodesy</FONT></DIV> > <DIV><FONT face=3DArial size=3D2>Tlf: 0 462 377 36=20 > 52<BR> </DIV></FONT></FONT></DIV></BODY></HTML> > > ------=_NextPart_000_001F_01C16938.3C56EFA0-- > > ---------------------------------------------------------- > To stop receiving the daily digest, send email to > [EMAIL PROTECTED] with the command > set mode standard ermapper-l > in the body. > > ----------------------------------------------------------- To make changes to your subscription, please visit our website, http://www.ermapper.com/technicl/ermapperl/index.htm
