diff --git a/demo/plate1n/data/sample-x219-y377-signal-Txx.csv b/demo/plate1n/data/sample-x219-y377-signal-Txx.csv
new file mode 100644
index 0000000..cace594
--- /dev/null
+++ b/demo/plate1n/data/sample-x219-y377-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
+-4.111606946930253259e-34
+-9.192238870040399505e-31
+-1.238997822211449092e-27
+-1.028255833875140190e-24
+-5.345258384905158313e-22
+-1.764222184186520029e-19
+-3.734340955211880623e-17
+-5.102437112283969914e-15
+-4.512877701742801229e-13
+-2.580205493707410369e-11
+-9.477494344878323318e-10
+-2.209622174120795535e-08
+-3.206597511962172575e-07
+-2.814645313264918514e-06
+-1.439524658053414896e-05
+-4.156807699473574758e-05
+-7.116202323231846094e-05
+-9.198591578751802444e-05
+-9.336863877251744270e-05
+-4.263884693500585854e-05
+6.247666897252202034e-05
+2.265708899358287454e-04
+4.236206877976655960e-04
+5.827500135637819767e-04
+6.215781322680413723e-04
+4.799849702976644039e-04
+1.155993522843346000e-04
+-4.009334661532193422e-04
+-9.604353108443319798e-04
+-1.398185733705759048e-03
+-1.563927507959306240e-03
+-1.374684390611946583e-03
+-8.600449655205011368e-04
+-1.491224538767710328e-04
+5.568982451222836971e-04
+1.087695942260324955e-03
+1.335788518190383911e-03
+1.305288285948336124e-03
+1.093648839741945267e-03
+8.304599905386567116e-04
+6.208239356055855751e-04
+4.999878001399338245e-04
+4.181652911938726902e-04
+2.853329351637512445e-04
+3.052551983273588121e-05
+-3.650973667390644550e-04
+-8.346288232132792473e-04
+-1.239454490132629871e-03
+-1.432256423868238926e-03
+-1.328873098827898502e-03
+-9.320891695097088814e-04
+-3.449315554462373257e-04
+2.769361308310180902e-04
+7.780897431075572968e-04
+1.052867737598717213e-03
+1.064997864887118340e-03
+8.496980299241840839e-04
+5.039031384512782097e-04
+1.183594358735717833e-04
+-2.361884835409000516e-04
+-5.098243709653615952e-04
+-6.906962371431291103e-04
+-7.749741198495030403e-04
+-7.466950337402522564e-04
+-6.276443018577992916e-04
+-4.192083724774420261e-04
+-1.248429034603759646e-04