diff --git a/demo/plate1n/data/sample-x203-y174-signal-Txx.csv b/demo/plate1n/data/sample-x203-y174-signal-Txx.csv
new file mode 100644
index 0000000..c709f43
--- /dev/null
+++ b/demo/plate1n/data/sample-x203-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
+-1.021995668624638462e-37
+-4.275013059486532551e-34
+-9.644817360643709405e-31
+-1.312989450669381771e-27
+-1.101424852201878392e-24
+-5.791590079062944365e-22
+-1.934798846463230497e-19
+-4.147558368468255556e-17
+-5.741924541087864431e-15
+-5.147535501147382231e-13
+-2.983884667129288459e-11
+-1.111350234062058462e-09
+-2.626862460886059125e-08
+-3.862107007535087178e-07
+-3.427783212828217074e-06
+-1.763262116583064198e-05
+-5.046898149885237217e-05
+-8.274213178083300591e-05
+-9.959013550542294979e-05
+-9.410296479472890496e-05
+-2.791605948004871607e-05
+9.395245433552190661e-05
+2.731151471380144358e-04
+4.777882131747901440e-04
+6.263314862735569477e-04
+6.285556592047214508e-04
+4.407261731103062630e-04
+2.881119326048064977e-05
+-5.084618460386991501e-04
+-1.055009081028401852e-03
+-1.446167472749948502e-03
+-1.552475499920547009e-03
+-1.318660099059343338e-03
+-8.040806860662996769e-04
+-1.427414536010473967e-04
+4.826510557904839516e-04
+9.518067818135023117e-04
+1.201224164105951786e-03
+1.260120188817381859e-03
+1.207789755426347256e-03
+1.116532599553465843e-03
+1.021986943669617176e-03
+9.018154814839363098e-04
+6.930752424523234367e-04
+3.434084646869450808e-04
+-1.454421144444495440e-04
+-7.060651551000773907e-04
+-1.218182616867125034e-03
+-1.543528283946216106e-03
+-1.580748124979436398e-03
+-1.315303030423820019e-03
+-8.222582982853055000e-04
+-2.408530417596921325e-04
+2.626119239721447229e-04
+5.664462805725634098e-04
+6.340815452858805656e-04
+5.090939230285584927e-04
+2.988755586557090282e-04
+1.444249792257323861e-04
+1.241006830241531134e-04
+2.293988654855638742e-04
+3.996214363723993301e-04
+5.144908791407942772e-04
+4.862911591771990061e-04
+3.078489680774509907e-04
+6.282592948991805315e-06
+-3.179609193466603756e-04
+-5.398869398050010204e-04