diff --git a/demo/plate1n/data/sample-x158-y291-signal-Txx.csv b/demo/plate1n/data/sample-x158-y291-signal-Txx.csv
new file mode 100644
index 0000000..86f6e5a
--- /dev/null
+++ b/demo/plate1n/data/sample-x158-y291-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
+-4.168086013421616511e-17
+-5.786218858515107186e-15
+-5.207476702455415829e-13
+-3.035125276107386583e-11
+-1.139057181909208794e-09
+-2.721170311303922063e-08
+-4.061763547724694945e-07
+-3.685251613205764443e-06
+-1.959063774847891182e-05
+-5.885350037715397775e-05
+-1.018589900922961533e-04
+-1.220963022205978632e-04
+-1.072786835720762610e-04
+-1.896007597679272294e-05
+1.400381297571584582e-04
+3.620761272031813860e-04
+6.009110365994274616e-04
+7.580460514873266220e-04
+7.097228663042187691e-04
+4.036031896248459816e-04
+-1.672297948971390724e-04
+-8.595715044066309929e-04
+-1.484368811361491680e-03
+-1.822625985369086266e-03
+-1.731573604047298431e-03
+-1.187787391245365143e-03
+-3.424852911848574877e-04
+5.493697244673967361e-04
+1.215187599882483482e-03
+1.501969876699149609e-03
+1.396772218868136406e-03
+1.043501892127096653e-03
+6.546264048665761948e-04
+4.028276016470044851e-04
+3.516802389640361071e-04
+4.285873146727681160e-04
+4.758386348839849234e-04
+3.528572269715368748e-04
+1.127714131143875420e-05
+-4.809616075363010168e-04
+-9.659027564339339733e-04
+-1.265144324861466885e-03
+-1.265193452127277851e-03
+-9.759577224031090736e-04
+-5.108229233883321285e-04
+-2.963939732580911368e-05
+3.312457702122628689e-04
+5.104854353703558445e-04
+5.263257189653813839e-04
+4.354262491688132286e-04
+2.940748818218708038e-04
+1.560588571010157466e-04
+4.014682781416922808e-05
+-6.204898818396031857e-05
+-1.337437424808740616e-04
+-1.552412722958251834e-04
+-9.831681381911039352e-05
+5.675698048435151577e-05
+2.521633577998727560e-04
+3.979604225605726242e-04
+4.292369121685624123e-04