diff --git a/demo/plate1n/data/sample-x216-y174-signal-Txx.csv b/demo/plate1n/data/sample-x216-y174-signal-Txx.csv
new file mode 100644
index 0000000..67b039f
--- /dev/null
+++ b/demo/plate1n/data/sample-x216-y174-signal-Txx.csv
@@ -0,0 +1,99 @@
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+-9.368293442219390659e-38
+-4.105092136832805362e-34
+-9.178463957039723611e-31
+-1.237354426189903464e-27
+-1.027122437969563901e-24
+-5.340780684189379014e-22
+-1.763263817898694920e-19
+-3.733482672608295601e-17
+-5.102904674470854288e-15
+-4.514733042710467048e-13
+-2.582063209077833932e-11
+-9.487097774041330922e-10
+-2.212490457509375119e-08
+-3.211781063328089658e-07
+-2.820579538820311427e-06
+-1.444113513571210206e-05
+-4.181473559583537281e-05
+-7.199635729193687439e-05
+-9.345838770968839526e-05
+-9.475857950747013092e-05
+-4.392257687868550420e-05
+6.199727067723870277e-05
+2.269913384225219488e-04
+4.268902412150055170e-04
+5.907330196350812912e-04
+6.342143751680850983e-04
+4.971908056177198887e-04
+1.358351437374949455e-04
+-3.837555414065718651e-04
+-9.536124998703598976e-04
+-1.411294797435402870e-03
+-1.604889519512653351e-03
+-1.447477727197110653e-03
+-9.598901960998773575e-04
+-2.605963381938636303e-04
+4.608166054822504520e-04
+1.040300587192177773e-03
+1.368204248137772083e-03
+1.434306381270289421e-03
+1.311713713221251965e-03
+1.103042857721447945e-03
+8.951702620834112167e-04
+7.148869335651397705e-04
+5.211448296904563904e-04
+2.465267898514866829e-04
+-1.505873224232345819e-04
+-6.490509840659797192e-04
+-1.153492485173046589e-03
+-1.517522847279906273e-03
+-1.606137724593281746e-03
+-1.367107150144875050e-03
+-8.511968189850449562e-04
+-2.030254690907895565e-04
+3.824519226327538490e-04
+7.499899365939199924e-04
+8.352277800440788269e-04
+6.752950139343738556e-04
+3.890095686074346304e-04
+1.287013583350926638e-04
+-9.684787983132991940e-06
+-5.283701739244861528e-06
+9.635991591494530439e-05
+2.074100484605878592e-04
+2.525943273212760687e-04
+2.105352323269471526e-04
+8.016272477107122540e-05
+-8.826122939353808761e-05
+-2.363016537856310606e-04