diff --git a/demo/plate1n/data/sample-x144-y203-signal-Txx.csv b/demo/plate1n/data/sample-x144-y203-signal-Txx.csv
new file mode 100644
index 0000000..6f94c9b
--- /dev/null
+++ b/demo/plate1n/data/sample-x144-y203-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
+-1.021995668624638462e-37
+-4.275182955154424835e-34
+-9.646384059514485350e-31
+-1.313570696326597839e-27
+-1.102462598722696633e-24
+-5.801806143329918557e-22
+-1.940684495015486712e-19
+-4.168085351677126469e-17
+-5.786218011482159931e-15
+-5.207476702455415829e-13
+-3.035125276107386583e-11
+-1.139056737819998943e-09
+-2.721168357311398722e-08
+-4.061757863382808864e-07
+-3.685277079057414085e-06
+-1.959248402272351086e-05
+-5.889798558200709522e-05
+-1.023667136905714869e-04
+-1.248990738531574607e-04
+-1.142570690717548132e-04
+-2.614293771330267191e-05
+1.361135364277288318e-04
+3.654714673757553101e-04
+6.177803734317421913e-04
+7.881720666773617268e-04
+7.505362154915928841e-04
+4.468010738492012024e-04
+-1.445965899620205164e-04
+-8.751244167797267437e-04
+-1.551553956232964993e-03
+-1.936010201461613178e-03
+-1.866188715212047100e-03
+-1.302172313444316387e-03
+-3.952074039261788130e-04
+5.896023358218371868e-04
+1.345712342299520969e-03
+1.690844655968248844e-03
+1.590582076460123062e-03
+1.191808260045945644e-03
+7.263534353114664555e-04
+3.959081368520855904e-04
+2.888516173698008060e-04
+3.408069605939090252e-04
+3.773390490096062422e-04
+2.305788075318560004e-04
+-1.571958709973841906e-04
+-7.020547054708003998e-04
+-1.208959263749420643e-03
+-1.455177436582744122e-03
+-1.302054850384593010e-03
+-7.794090779498219490e-04
+-6.367848254740238190e-05
+5.921044503338634968e-04
+9.609799017198383808e-04
+9.412866202183067799e-04
+5.835164920426905155e-04
+5.268016684567555785e-05
+-4.508429847192019224e-04
+-7.439160835929214954e-04
+-7.477320614270865917e-04
+-5.098893889226019382e-04
+-1.332648098468780518e-04
+2.316124737262725830e-04
+4.787255020346492529e-04
+5.940081900916993618e-04
+5.852250615134835243e-04
+5.059896502643823624e-04
+4.352317191660404205e-04