Dear fellows :
In austrian centre of physics we use Stata to do
LevenbergMarquardt(nl-command)since about
four months,about 400 measurements were evaluated.
we consider small (not infinitesimal) dosis-intervals and the number of
persons who are exposed
to these intervals - the following little program shows how to count the
number of persons in certain
intervals :
/pos is ln(dosis-value) because then it seems to be Gau�-distribution
without logarithmusnaturalis it is lognormal distribution -
it is easier to reach convergence with Gau�-formula in
most cases /
local i = 3
while `i' <= 20 {
count if pos >= `i' & pos < `i' + .05
display
local i = `i' + .05
}
* 3 - 3.05 -> 3.025
* 3.05 - 3.1 -> 3.075
* 3.1 - 3.15 -> 3.125
* 3.15 - 3.2 -> 3.175
* 3.2 - 3.25 -> 3.225
* 3.3 - 3.35 -> 3.325
this program counts and you get also zero if there is no value in interval
-
with these values I can obtain the following ascii-text-file :
Ascii-Text-file :
x y x...dosis-value in radioactive measurement
y...number of counts
3.025 1 ->for example :
3.075 2 ............... two counts in interval 3.05 to 3.1
3.125 4
3.175 7
3.225 6
3.275 5
3.325 10
3.375 13
3.425 22
3.475 13
3.525 24
3.575 41
3.625 41
3.675 60
3.725 67
3.775 81
3.825 98
3.875 143
3.925 162
3.975 181
4.025 241
4.075 268
4.125 301
... and so on
my question : is there a way to get x-column and y-column
simultaneously in a sheet(ascii) during counting ? -
because I start my little counting-program and get the counted values
on results-screen with one blank line after each count value,then I import
in
excel with copy/paste and add x-column after deleting all blank lines
with a macro. complicated way isn't it ? then I have ascii-sheet with x-and
y-
column by copy and paste from excel-
each help will be appreciated very much andreas
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