Index: trunk/ppMerge/src/ppMergeReadChunk.c
===================================================================
--- trunk/ppMerge/src/ppMergeReadChunk.c	(revision 21244)
+++ trunk/ppMerge/src/ppMergeReadChunk.c	(revision 21365)
@@ -6,6 +6,6 @@
  *
  *  @author IfA
- *  @version $Revision: 1.5 $ $Name: not supported by cvs2svn $
- *  @date $Date: 2009-02-01 21:43:05 $
+ *  @version $Revision: 1.6 $ $Name: not supported by cvs2svn $
+ *  @date $Date: 2009-02-06 02:44:31 $
  *  Copyright 2009 Institute for Astronomy, University of Hawaii
  */
@@ -20,7 +20,8 @@
 
     bool mdok;
-    bool haveMasks = psMetadataLookupBool(&mdok, config->arguments, "INPUTS.MASKS"); ///< Do we have masks?
-    bool haveWeights = psMetadataLookupBool(&mdok, config->arguments, "INPUTS.WEIGHTS");///< Do we have weights?
-    int rows = psMetadataLookupS32(NULL, config->arguments, "ROWS"); ///< Number of rows to read per chunk
+    bool haveMasks = psMetadataLookupBool(&mdok, config->arguments, "INPUTS.MASKS"); // Do we have masks?
+    bool haveVariances = psMetadataLookupBool(&mdok, config->arguments,
+                                              "INPUTS.VARIANCES");// Do we have variances?
+    int rows = psMetadataLookupS32(NULL, config->arguments, "ROWS"); // Number of rows to read per chunk
 
     // select an available fileGroup
@@ -52,5 +53,5 @@
                 // override the recorded last scan
                 inRO->thisImageScan  = fileGroup->firstScan;
-                inRO->thisWeightScan = fileGroup->firstScan;
+                inRO->thisVarianceScan = fileGroup->firstScan;
                 inRO->thisMaskScan   = fileGroup->firstScan;
                 inRO->forceScan      = true;
@@ -81,9 +82,10 @@
                 }
 
-                if (haveWeights && pmReadoutMoreWeight(inRO, file->fits, 0, rows, config)) {
+                if (haveVariances && pmReadoutMoreVariance(inRO, file->fits, 0, rows, config)) {
                     keepReading = true;
-                    pmFPAfile *file = pmFPAfileSelectSingle(config->files, "PPMERGE.INPUT.WEIGHT", i);
-                    if (!pmReadoutReadChunkWeight(inRO, file->fits, 0, rows, 0, config)) {
-                        psError(PS_ERR_IO, false, "Unable to read chunk %d for file PPMERGE.INPUT.WEIGHT %d",
+                    pmFPAfile *file = pmFPAfileSelectSingle(config->files, "PPMERGE.INPUT.VARIANCE", i);
+                    if (!pmReadoutReadChunkVariance(inRO, file->fits, 0, rows, 0, config)) {
+                        psError(PS_ERR_IO, false,
+                                "Unable to read chunk %d for file PPMERGE.INPUT.VARIANCE %d",
                                 numChunk, i);
                         *status = false;