diff --git a/demo/plate1n/data/sample-x369-y246-signal-Txx.csv b/demo/plate1n/data/sample-x369-y246-signal-Txx.csv
new file mode 100644
index 0000000..2ffcc57
--- /dev/null
+++ b/demo/plate1n/data/sample-x369-y246-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
+-3.685274577946984209e-06
+-1.959237670234870166e-05
+-5.889573003514669836e-05
+-1.023452496156096458e-04
+-1.248639018740504980e-04
+-1.148978990386240184e-04
+-2.919658072642050683e-05
+1.328042853856459260e-04
+3.643178206402808428e-04
+6.192473229020833969e-04
+7.970808073878288269e-04
+7.668704492971301079e-04
+4.694818053394556046e-04
+-1.194251017295755446e-04
+-8.628802024759352207e-04
+-1.563571742735803127e-03
+-1.983046298846602440e-03
+-1.946965814568102360e-03
+-1.403045025654137135e-03
+-4.882982466369867325e-04
+5.374600295908749104e-04
+1.366142183542251587e-03
+1.794331008568406105e-03
+1.765078050084412098e-03
+1.398249645717442036e-03
+9.160559857264161110e-04
+5.269942339509725571e-04
+3.399965353310108185e-04
+3.121357294730842113e-04
+2.858822699636220932e-04
+9.960248280549421906e-05
+-3.192361618857830763e-04
+-9.027892956510186195e-04
+-1.462581451050937176e-03
+-1.763413776643574238e-03
+-1.633775536902248859e-03
+-1.061443705111742020e-03
+-1.976511703105643392e-04
+7.016204181127250195e-04
+1.365941017866134644e-03
+1.617025001905858517e-03
+1.419443055056035519e-03
+8.717766031622886658e-04
+1.513716997578740120e-04
+-5.223076441325247288e-04
+-9.842371800914406776e-04
+-1.168614951893687248e-03
+-1.068914425559341908e-03
+-7.633265922777354717e-04
+-3.558698517736047506e-04
+7.516892219427973032e-05
+4.419121542014181614e-04
+6.932299584150314331e-04
+8.417236967943608761e-04