diff --git a/code/analysis/run_main.m b/code/analysis/run_main.m
index 6159dd4..faf56be 100644
--- a/code/analysis/run_main.m
+++ b/code/analysis/run_main.m
@@ -210,7 +210,7 @@
     end
 
     %% Run the Analyses
-    for a_idx = 1:size(config.analyses)
+    for a_idx = 1:numel(config.analyses)
         an = config.analyses(a_idx);
         if iscell(an)
             an = cell2mat(an);
@@ -250,7 +250,7 @@
 %% Helper functions
 function has = has_multiple_analyses(analyses, analysis_type)
     count = 0;
-    for a_idx = 1:size(analyses)
+    for a_idx = 1:numel(analyses)
         an = analyses(a_idx);
         if iscell(an)
             an = cell2mat(an);
diff --git a/code/analysis/run_preprocess.m b/code/analysis/run_preprocess.m
index 746977c..f6efd66 100644
--- a/code/analysis/run_preprocess.m
+++ b/code/analysis/run_preprocess.m
@@ -47,7 +47,7 @@
 res = data;
 preprop_deets = struct;
 bystep = cell(1,length(config.preprocess));
-for p_idx = 1:size(config.preprocess)
+for p_idx = 1:numel(config.preprocess)
     prp = config.preprocess(p_idx);
     if iscell(prp)
         prp = cell2mat(prp);
diff --git a/code/utils/analysis/parse_mappers.m b/code/utils/analysis/parse_mappers.m
index f94ffec..2fe27b3 100644
--- a/code/utils/analysis/parse_mappers.m
+++ b/code/utils/analysis/parse_mappers.m
@@ -1,6 +1,6 @@
 function all_mapper_opts = parse_mappers(mapper_opts)
 all_mapper_opts = {};
-for i=1:size(mapper_opts)
+for i=1:numel(mapper_opts)
     mopts = mapper_opts(i);
     if ~isa(mopts, 'struct')
         mopts = cell2mat(mopts);