diff --git a/demo/plate1n/data/sample-x148-y125-signal-Txx.csv b/demo/plate1n/data/sample-x148-y125-signal-Txx.csv
new file mode 100644
index 0000000..f846e35
--- /dev/null
+++ b/demo/plate1n/data/sample-x148-y125-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
+-2.721168002040030842e-08
+-4.061757863382808864e-07
+-3.685274805320659652e-06
+-1.959238761628512293e-05
+-5.889598105568438768e-05
+-1.023473669192753732e-04
+-1.248571643372997642e-04
+-1.146924259955994785e-04
+-2.834128099493682384e-05
+1.330937084276229143e-04
+3.619430935941636562e-04
+6.147557869553565979e-04
+7.891178829595446587e-04
+7.571636233478784561e-04
+4.595426435116678476e-04
+-1.242842990905046463e-04
+-8.519517141394317150e-04
+-1.532045658677816391e-03
+-1.928050187416374683e-03
+-1.876242225989699364e-03
+-1.332573709078133106e-03
+-4.422189085744321346e-04
+5.346913821995258331e-04
+1.293644309043884277e-03
+1.648142817430198193e-03
+1.558485906571149826e-03
+1.167879090644419193e-03
+7.069734274409711361e-04
+3.880346775986254215e-04
+3.086855576839298010e-04
+4.047354159411042929e-04
+5.053055938333272934e-04
+4.335735284257680178e-04
+1.071980805136263371e-04
+-4.249484336469322443e-04
+-9.865770116448402405e-04
+-1.359949586912989616e-03
+-1.388684380799531937e-03
+-1.065608346834778786e-03
+-5.198235157877206802e-04
+4.224909207550808787e-05
+4.194132343400269747e-04
+5.110408528707921505e-04
+3.493863041512668133e-04
+5.789180067949928343e-05
+-2.092071517836302519e-04
+-3.088973753619939089e-04
+-1.943915995070710778e-04
+7.531594746978953481e-05
+3.977599553763866425e-04
+6.328389281406998634e-04
+6.862157024443149567e-04
+5.676864529959857464e-04
+3.261868841946125031e-04
+6.491909880423918366e-05
+-9.281341044697910547e-05