Global search and correlation results can handle null expression now

2 files changed, 2 insertions, 2 deletions

diff --git a/wqflask/utility/type_checking.py b/wqflask/utility/type_checking.py
index 220e5f62..f15b17e2 100644
--- a/wqflask/utility/type_checking.py
+++ b/wqflask/utility/type_checking.py
@@ -27,7 +27,7 @@ def get_float(vars,name,default=None):
     if name in vars:
         if is_float(vars[name]):
             return float(vars[name])
-    return None
+    return default
 
 def get_int(vars,name,default=None):
     if name in vars:
diff --git a/wqflask/wqflask/correlation/show_corr_results.py b/wqflask/wqflask/correlation/show_corr_results.py
index 1aa7945d..6e9abcd6 100644
--- a/wqflask/wqflask/correlation/show_corr_results.py
+++ b/wqflask/wqflask/correlation/show_corr_results.py
@@ -83,7 +83,7 @@ class CorrelationResults(object):
         assert('corr_sample_method' in start_vars)
         assert('corr_samples_group' in start_vars)
         assert('corr_dataset' in start_vars)
-        assert('min_expr' in start_vars)
+        #assert('min_expr' in start_vars)
         assert('corr_return_results' in start_vars)
         if 'loc_chr' in start_vars:
             assert('min_loc_mb' in start_vars)