diff --git a/demo/plate1n/data/sample-x309-y230-signal-Txx.csv b/demo/plate1n/data/sample-x309-y230-signal-Txx.csv
new file mode 100644
index 0000000..a8f263e
--- /dev/null
+++ b/demo/plate1n/data/sample-x309-y230-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
+-9.646400986633137191e-31
+-1.313570888919592277e-27
+-1.102454710113644423e-24
+-5.801629943358128391e-22
+-1.940511304074733421e-19
+-4.167168504686172693e-17
+-5.783396121218382230e-15
+-5.202254642691639397e-13
+-3.029196338211193051e-11
+-1.134886851161809318e-09
+-2.702973844748157717e-08
+-4.012821932519727852e-07
+-3.605356823754846118e-06
+-1.882001197373028845e-05
+-5.464114292408339679e-05
+-8.955596422310918570e-05
+-1.040315401041880250e-04
+-9.400332783116027713e-05
+-1.874927147582639009e-05
+1.144843263318762183e-04
+3.040505980607122183e-04
+5.133623490110039711e-04
+6.541322800330817699e-04
+6.261637900024652481e-04
+3.949088568333536386e-04
+-6.469604704761877656e-05
+-6.320898537524044514e-04
+-1.172126154415309429e-03
+-1.510101370513439178e-03
+-1.523492392152547836e-03
+-1.175845740363001823e-03
+-5.688514793291687965e-04
+1.276188559131696820e-04
+7.082002121023833752e-04
+1.055891276337206364e-03
+1.136765000410377979e-03
+1.028598984703421593e-03
+8.571683429181575775e-04
+7.292190566658973694e-04
+6.878763088025152683e-04
+6.913171382620930672e-04
+6.404716987162828445e-04
+4.471543361432850361e-04
+8.497829549014568329e-05
+-3.893521497957408428e-04
+-8.559689158573746681e-04
+-1.172998920083045959e-03
+-1.242444966919720173e-03
+-1.059431466273963451e-03
+-7.042385987006127834e-04
+-3.054833214264363050e-04
+1.171419262391282246e-05
+1.857491733971983194e-04
+2.317870676051825285e-04
+2.130271896021440625e-04
+1.989062584470957518e-04
+2.517853281460702419e-04
+3.602159558795392513e-04
+4.475048044696450233e-04
+4.476832400541752577e-04
+3.027844359166920185e-04
+2.827648677339311689e-05
+-2.746431855484843254e-04
+-5.152266239747405052e-04
+-5.940769915468990803e-04
+-4.336794663686305285e-04