diff --git a/demo/plate1n/data/sample-x202-y246-signal-Txx.csv b/demo/plate1n/data/sample-x202-y246-signal-Txx.csv
new file mode 100644
index 0000000..37b2efc
--- /dev/null
+++ b/demo/plate1n/data/sample-x202-y246-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
+-4.273479865878174888e-34
+-9.638850551318935474e-31
+-1.311683284981098348e-27
+-1.099756509994949105e-24
+-5.778828960189109937e-22
+-1.928834098764898899e-19
+-4.130245809119765707e-17
+-5.710368752154379099e-15
+-5.111158891957234829e-13
+-2.957301417638724672e-11
+-1.099071167409704231e-09
+-2.591341718982675957e-08
+-3.798877230565267382e-07
+-3.360529035489889793e-06
+-1.722516572044696659e-05
+-4.917147452943027020e-05
+-8.087167225312441587e-05
+-9.878833952825516462e-05
+-9.473538375459611416e-05
+-3.029391336895059794e-05
+8.983734733192250133e-05
+2.684579230844974518e-04
+4.736072733066976070e-04
+6.235530599951744080e-04
+6.292964098975062370e-04
+4.435369628481566906e-04
+2.968054468510672450e-05
+-5.129507044330239296e-04
+-1.065757474862039089e-03
+-1.457477919757366180e-03
+-1.551423454657196999e-03
+-1.290964544750750065e-03
+-7.405953365378081799e-04
+-4.830272519029676914e-05
+5.838870420120656490e-04
+1.019300892949104309e-03
+1.190446200780570507e-03
+1.141769811511039734e-03
+9.853143710643053055e-04
+8.343397639691829681e-04
+7.578239892609417439e-04
+7.413008133880794048e-04
+6.961032049730420113e-04
+5.236552678979933262e-04
+1.719371211947873235e-04
+-3.320722025819122791e-04
+-8.811887819319963455e-04
+-1.318515161983668804e-03
+-1.504388288594782352e-03
+-1.382564427331089973e-03
+-9.932612301781773567e-04
+-4.566643037833273411e-04
+6.762379780411720276e-05
+4.491611325647681952e-04
+6.212822045199573040e-04
+5.869271699339151382e-04
+4.059101047459989786e-04
+1.840685872593894601e-04
+-6.592994736820401158e-07
+-1.072848244803026319e-04
+-1.128148651332594454e-04
+-3.842570367851294577e-05
+9.014725219458341599e-05
+2.588600036688148975e-04
+4.097051860298961401e-04
+5.110140773467719555e-04
+5.465690046548843384e-04