Fixed https://github.com/opentox/model/issues/8

1 files changed, 4 insertions, 2 deletions

diff --git a/lib/transform.rb b/lib/transform.rb
index 8fe1093..5c485fb 100644
--- a/lib/transform.rb
+++ b/lib/transform.rb
@@ -396,8 +396,10 @@ module OpenTox
             @q_prop = gsl_q_prop_orig.row(0).to_a
           end
 
-          LOGGER.debug "F: #{@n_prop.size}x#{@n_prop[0].size}; R: #{@q_prop.size}"
-          LOGGER.debug "Sims: #{@sims.size}, Acts: #{@acts.size}"
+         if (@n_prop && @q_prop)
+            LOGGER.debug "F: #{@n_prop.size}x#{@n_prop[0].size}; R: #{@q_prop.size}" 
+          end
+          LOGGER.debug "Sims: #{@sims.size}, Acts: #{@acts.size}" if (@sims && @acts)
 
           @sims = [ gram_matrix, @sims ]