[ferret_users] strange summarizing

[Peter Szabo <szabpet83@xxxxxxxxx>]

Hello Ferreters,

when i am trying to have the results of mann-kendall test, i found something strange: i want to sum a calculated variable it just dont work. A bug or i am messing up something?

let ka=1
let szum`ka`=0
repeat/range=`ka+1`:40:1/name=ja (let signpreX=if (pret=`ja`]-pre[t=`ka`]) ge 1 then 1 else signproba; let signproba=if (pret=`ja`]-pre[t=`ka`]) le -1 then (-1) else 0; let szum`ja`=signpreX+szum`ja-1`; list/nohead szum`ja`,signpreX)

i know "szumka40" should be the result of the sum. I do the listing to check if that works, but the result is like below: the each variables are correct, while the sum is not. Anyone could help me?

Thanks, Peter

---------------listing
I / *:      1.000   1.000
I / *:     -2.000  -1.000
I / *:      3.000   1.000
I / *:      4.000   1.000
I / *:      5.000   1.000
I / *:      6.000   1.000
I / *:     -7.000  -1.000
I / *:     -8.000  -1.000
I / *:      9.000   1.000
I / *:     -10.00  -1.000
I / *:      11.00   1.000
I / *:     -12.00  -1.000
I / *:     -13.00  -1.000
I / *:      14.00   1.000
I / *:     -15.00  -1.000
I / *:      16.00   1.000
I / *:      17.00   1.000
I / *:      18.00   1.000
I / *:     -19.00  -1.000
I / *:     -20.00  -1.000
I / *:     -21.00  -1.000
I / *:     -22.00  -1.000
I / *:      23.00   1.000
I / *:      24.00   1.000
I / *:     -25.00  -1.000
I / *:      26.00   1.000
I / *:     -27.00  -1.000
I / *:      28.00   1.000
I / *:     -29.00  -1.000
I / *:      30.00   1.000
I / *:     -31.00  -1.000
I / *:     -32.00  -1.000
I / *:      33.00   1.000
I / *:      34.00   1.000
I / *:      35.00   1.000
I / *:      36.00   1.000
I / *:     -37.00  -1.000
I / *:     -38.00  -1.000
I / *:      39.00   1.000