Txt file not uploading for peaks to pathways analysis

[chantel]

positive k means DEM.txt (157.9 KB)

Hi all, appreciate your expertise regarding my current issue -

I can’t seem to get my .txt file to work when I upload it to metaboanalyst for MS functional analysis. I keep getting and error message saying “Missing information, data must contain a ‘m.z’ column!”. I’ve run similar analyses before with no issue, so I’m not sure what’s gone wrong? I’ve checked the format of the data when I open the txt file in excel as well, and it all looks right - no missing values, all aligned properly etc.

Thanks in advance!

[jeff.xia]

I copy-and-paste your data (top lines) below - you should notice that some values (ending with n) in the m.z column do not make sense to our program:

m.z	p.value	t.stat	r.t
562.359	1.69E-10	-9.9181	12.99
295.2255	5.22E-10	9.4037	23.62
474.3254	5.27E-10	-9.3991	13
592.3876	5.32E-10	-9.3953	11.49
435.2815	5.72E-10	-9.3627	12.63
443.2892	6.76E-10	-9.2879	13.35
499.2871	7.14E-10	-9.2637	11.25
630.3799n	7.43E-10	-9.246	13.07
562.3771	7.47E-10	-9.2431	13.17
683.4287	7.63E-10	-9.2341	11.93
441.7747	8.03E-10	-9.2111	13.58
469.7769	8.17E-10	-9.2036	12.2
483.6449	8.32E-10	-9.1951	13.22
540.3462	8.43E-10	-9.1893	12.95
646.0188	9.00E-10	-9.1606	23.4
459.2933	9.08E-10	-9.1564	13.58
481.306	9.73E-10	-9.1257	13.61
520.2346n	9.95E-10	-9.1161	12.4
449.9568	1.14E-09	-9.0573	12.67
221.1379	1.15E-09	-9.0522	13.47
516.2760n	1.15E-09	-9.051	11.52
675.3697	1.16E-09	-9.0492	23.33
377.2503	1.24E-09	-9.0194	13.19
367.2225	1.37E-09	-8.9746	13.47
405.7585	1.38E-09	-8.9709	11.66
412.2657n	1.39E-09	-8.9694	12.89
351.2148n	1.44E-09	-8.9544	10.7
588.3694n	1.45E-09	-8.9514	13.24
823.5114n	1.50E-09	-8.9352	13.31
500.3177n	1.55E-09	-8.9204	13.08
354.2062n	1.62E-09	-8.9016	12.83
254.1627n	1.62E-09	-8.9003	10.82