diff --git a/demo/plate1n/data/sample-x247-y328-signal-Txx.csv b/demo/plate1n/data/sample-x247-y328-signal-Txx.csv
new file mode 100644
index 0000000..2b13140
--- /dev/null
+++ b/demo/plate1n/data/sample-x247-y328-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
+0.000000000000000000e+00
+-6.796826144176881544e-36
+-2.102414111179084663e-32
+-3.809928481839962045e-29
+-4.158623551060426143e-26
+-2.791544609660491183e-23
+-1.171799807717174457e-20
+-3.115815245968312839e-18
+-5.296481666708971036e-16
+-5.787068009044729622e-14
+-4.070121843724461286e-12
+-1.837030527696015270e-10
+-5.277184911278709478e-09
+-9.509561493814544519e-08
+-1.051659410222782753e-06
+-6.932489213795633987e-06
+-2.646916072990279645e-05
+-5.908577441005036235e-05
+-8.828149293549358845e-05
+-1.036905086948536336e-04
+-7.727909542154520750e-05
+6.359306553349597380e-06
+1.546531420899555087e-04
+3.513092815410345793e-04
+5.525430315174162388e-04
+6.614953163079917431e-04
+6.001072470098733902e-04
+3.074517298955470324e-04
+-1.923642121255397797e-04
+-7.997932261787354946e-04
+-1.342783332802355289e-03
+-1.651312806643545628e-03
+-1.587489387020468712e-03
+-1.138301799073815346e-03
+-4.125149280298501253e-04
+3.889045619871467352e-04
+1.052313135005533695e-03
+1.421617926098406315e-03
+1.465252134948968887e-03
+1.263121492229402065e-03
+9.585655643604695797e-04
+6.860091234557330608e-04
+5.110158817842602730e-04
+4.060944775119423866e-04
+2.850978926289826632e-04
+6.247982673812657595e-05
+-2.905097207985818386e-04
+-7.192305056378245354e-04
+-1.097307191230356693e-03
+-1.286913757212460041e-03
+-1.210925285704433918e-03
+-8.859825320541858673e-04
+-4.150363383814692497e-04
+4.561953028314746916e-05
+3.570819972082972527e-04
+4.507381527218967676e-04
+3.398496191948652267e-04
+1.110306620830669999e-04
+-1.125721973949111998e-04
+-2.150872314814478159e-04
+-1.496975310146808624e-04
+7.673547224840149283e-05
+3.838588309008628130e-04
+6.722604739479720592e-04
+8.416696218773722649e-04
+8.324091322720050812e-04
+6.238035275600850582e-04
+2.782170486170798540e-04