diff --git a/src/distPlus/expressionTree/ExpressionTreeEvaluator.re b/src/distPlus/expressionTree/ExpressionTreeEvaluator.re
index 27570b59..a09d76d1 100644
--- a/src/distPlus/expressionTree/ExpressionTreeEvaluator.re
+++ b/src/distPlus/expressionTree/ExpressionTreeEvaluator.re
@@ -335,7 +335,7 @@ let toLeaf =
     FloatFromDist.operationToLeaf(evaluationParams, distToFloatOp, t)
   | `Normalize(t) => Normalize.operationToLeaf(evaluationParams, t)
   | `Render(t) => Render.operationToLeaf(evaluationParams, t)
-  | `Function(t) => Ok(`Function(t))
+  | `Function(_) => Error("Function must be called with params")
   | `Symbol(r) => ExpressionTypes.ExpressionTree.Environment.get(evaluationParams.environment, r) |> E.O.toResult("Undeclared variable " ++ r)
   | `FunctionCall(name, args) =>
     callableFunction(evaluationParams, name, args)
diff --git a/src/distPlus/expressionTree/Functions.re b/src/distPlus/expressionTree/Functions.re
index f32c570c..13941ad3 100644
--- a/src/distPlus/expressionTree/Functions.re
+++ b/src/distPlus/expressionTree/Functions.re
@@ -79,7 +79,8 @@ let fnn =
       evaluationParams: ExpressionTypes.ExpressionTree.evaluationParams,
       name,
       args: array(node),
-    ) =>
+    ) =>{
+    Js.log3("HERE", name, args);
   switch (
     name,
     ExpressionTypes.ExpressionTree.Environment.get(
@@ -120,3 +121,4 @@ let fnn =
   | ("to", _) => to_(args)
   | _ => Error("Function not found")
   };
+    }
diff --git a/src/distPlus/expressionTree/MathJsParser.re b/src/distPlus/expressionTree/MathJsParser.re
index 52fb90b2..c5465ffc 100644
--- a/src/distPlus/expressionTree/MathJsParser.re
+++ b/src/distPlus/expressionTree/MathJsParser.re
@@ -1,3 +1,4 @@
+[%%debugger.chrome]
 module MathJsonToMathJsAdt = {
   type arg =
     | Symbol(string)
@@ -355,6 +356,7 @@ let fromString2 = str => {
        Inside of this function, MathAdtToDistDst is called whenever a distribution function is encountered.
      */
   let mathJsToJson = str |> pointwiseToRightLogShift |> Mathjs.parseMath;
+  Js.log2("HI", mathJsToJson);
   let mathJsParse =
     E.R.bind(mathJsToJson, r => {
       switch (MathJsonToMathJsAdt.run(r)) {
@@ -364,6 +366,7 @@ let fromString2 = str => {
     });
 
   let value = E.R.bind(mathJsParse, MathAdtToDistDst.run);
+  Js.log3("HI", mathJsParse, value);
   value;
 };
 
diff --git a/src/distPlus/renderers/DistPlusRenderer.re b/src/distPlus/renderers/DistPlusRenderer.re
index 7c39e17c..927e6a64 100644
--- a/src/distPlus/renderers/DistPlusRenderer.re
+++ b/src/distPlus/renderers/DistPlusRenderer.re
@@ -35,7 +35,7 @@ module Inputs = {
   type inputs = {
     distPlusIngredients: ingredients,
     samplingInputs: SamplingInputs.t,
-    environment: ExpressionTypes.ExpressionTree.environment
+    environment: ExpressionTypes.ExpressionTree.environment,
   };
 
   let empty: SamplingInputs.t = {
@@ -67,16 +67,14 @@ module Internals = {
   };
 
   let addVariable =
-      (
-        {samplingInputs, guesstimatorString, environment}: inputs,
-        str,
-        node,
-      )
+      ({samplingInputs, guesstimatorString, environment}: inputs, str, node)
       : inputs => {
     samplingInputs,
     guesstimatorString,
     environment:
-    ExpressionTypes.ExpressionTree.Environment.update(environment, str, _ => Some(node))
+      ExpressionTypes.ExpressionTree.Environment.update(environment, str, _ =>
+        Some(node)
+      ),
   };
 
   let distPlusRenderInputsToInputs = (inputs: Inputs.inputs): inputs => {
@@ -110,14 +108,15 @@ module Internals = {
   let runProgram = (inputs: inputs, p: ExpressionTypes.Program.program) => {
     let ins = ref(inputs);
     p
-    |> E.A.fmap(statement =>
+    |> E.A.fmap(statement => {
+         Js.log2("Running ling", statement);
          switch (statement) {
          | `Assignment(name, node) =>
            ins := addVariable(ins^, name, node);
            None;
          | `Expression(node) => Some(runNode(ins^, node))
-         }
-       )
+         };
+       })
     |> E.A.O.concatSomes
     |> E.A.R.firstErrorOrOpen;
   };
@@ -125,7 +124,12 @@ module Internals = {
   let inputsToShape = (inputs: inputs) => {
     MathJsParser.fromString(inputs.guesstimatorString)
     |> E.R.bind(_, g => runProgram(inputs, g))
-    |> E.R.bind(_, r => E.A.last(r) |> E.O.toResult("No rendered lines") |> E.R.fmap(Shape.T.normalize));
+    |> E.R.bind(_, r =>
+         E.A.last(r)
+         |> E.O.toResult("No rendered lines")
+         |> (e => {Js.log2("EE", e); e})
+         |> E.R.fmap(Shape.T.normalize)
+       );
   };
 
   let outputToDistPlus = (inputs: Inputs.inputs, shape: DistTypes.shape) => {