Creating an Input File
The easiest way to create an input file for the modal analysis procedure is to use the Plot! window in Probe for EPMA to output a .DAT file of the oxide or elemental weight percent compositions to disk. Be sure to select output of column labels so that the modal analysis routine can identify the elements in the input file.
One can also use an input file from any other source, just so long as the oxide or element symbols are the first line of the file and the data is in weight percent. The weight percent data can be in any format since the file is read as unformatted ASCII. However, the element symbols in the first line must be enclosed within double quotes.
A sample input file is shown below :
"SiO2" "FeO" "CaO" "Al2O3" "MgO" "Na2O"
52.8 17.7 4.06 .44 23.51 .19
50.08 29.9 1.44 1.23 15.78 .05
50.55 12.18 1.22 .62 34.37 0.0
37.18 15.45 .09 .33 46.56 0.0
54.66 9.28 .29 .09 34.88 0.0
40.66 7.28 .21 .08 33.88 0.0
38.55 15.79 .06 .55 45.13 0.0
40.37 14.91 .08 .00 46.10 0.0
38.62 16.39 .06 .00 44.93 0.0
38.47 16.23 .03 .29 45.14 0.0
41.07 4.3 0.0 .56 54.06 0.0
55.33 8.44 .70 .16 34.45 0.0
37.46 15.97 .01 .03 44.39 0.0
38.51 15.58 .32 .40 45.69 0.0
39.76 15.53 .05 .00 45.75 0.0
37.73 15.36 .02 .03 45.78 0.0
40.03 15.59 .01 .00 45.52 0.0
48.90 29.6 7.96 3.86 6.87 .58
51.92 31.9 0.0 1.85 0.0 12.86
52.92 6.2 19.97 2.8 16.4 .35
38.92 6.2 11.97 1.8 10.4 .21
37.94 16.66 .04 .02 45.98 0.0
36.81 16.07 .26 .28 43.59 0.0
38.55 15.79 .06 .55 45.13 0.0