X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Foutput%2Fcharts%2Froc-chart-cairo.c;h=04e37405f1e36e30ae15023843526e25b16a798c;hb=7c29c75d1317835e99863a6010c6b7a4b1aeecd1;hp=910d6152f0a7f64140b67cae932aa60a9bc7a652;hpb=29917c4f5908454803e663d2ad78bca4bc35e805;p=pspp

diff --git a/src/output/charts/roc-chart-cairo.c b/src/output/charts/roc-chart-cairo.c
index 910d6152f0..04e37405f1 100644
--- a/src/output/charts/roc-chart-cairo.c
+++ b/src/output/charts/roc-chart-cairo.c
@@ -58,11 +58,11 @@ xrchart_draw_roc (const struct chart *chart, cairo_t *cr,
       xrchart_vector_start (cr, geom, rv->name);
       for (; (cc = casereader_read (r)) != NULL; case_unref (cc))
 	{
-	  double se = case_data_idx (cc, ROC_TP)->f;
-	  double sp = case_data_idx (cc, ROC_TN)->f;
+	  double se = case_num_idx (cc, ROC_TP);
+	  double sp = case_num_idx (cc, ROC_TN);
 
-	  se /= case_data_idx (cc, ROC_FN)->f + case_data_idx (cc, ROC_TP)->f ;
-	  sp /= case_data_idx (cc, ROC_TN)->f + case_data_idx (cc, ROC_FP)->f ;
+	  se /= case_num_idx (cc, ROC_FN) + case_num_idx (cc, ROC_TP);
+	  sp /= case_num_idx (cc, ROC_TN) + case_num_idx (cc, ROC_FP);
 
 	  xrchart_vector (cr, geom, 1 - sp, se);
 	}