diff --git a/process_fields.ipynb b/process_fields.ipynb
index eca4f54..85fc0a5 100644
--- a/process_fields.ipynb
+++ b/process_fields.ipynb
@@ -518,7 +518,7 @@
    "source": [
     "\n",
     "likeliHoodGraph = ot.Graph()\n",
-    "myBXTrans = ot.BoxCoxFactory().build(myReal, [0], likeliHoodGraph)\n",
+    "myBXTrans, likeliHoodGraph = ot.BoxCoxFactory().buildWithGraph(myReal, [0])\n",
     "myNewReal = myBXTrans(myReal)\n",
     "newHist = ot.HistogramFactory().build(myNewReal.getValues())\n",
     "graph2 = newHist.drawPDF()\n",
diff --git a/sobol_field.ipynb b/sobol_field.ipynb
index 3fb5100..2a3c154 100644
--- a/sobol_field.ipynb
+++ b/sobol_field.ipynb
@@ -94,7 +94,10 @@
     "projection = ot.IntegrationStrategy(ot.GaussProductExperiment(distribution, [marginalDegree+1]*dim))\n",
     "\n",
     "# PCE\n",
-    "algo = ot.FunctionalChaosAlgorithm(model, distribution, adaptive, projection)\n",
+    "marginalSizes = [4] * dim\n",
+    "X, W = ot.GaussProductExperiment(distribution, marginalSizes).generateWithWeights()\n",
+    "Y = model(X)\n",
+    "algo = ot.FunctionalChaosAlgorithm(X, W, Y, distribution, adaptive, projection)\n",
     "t0 = time.time()\n",
     "#ot.Log.Show(ot.Log.INFO)\n",
     "algo.run()\n",