Liam Clarke wrote:
example of (1):
---------------------------------------------------------
#this part of the program reads the file basin.out (the data we want to
analyze) and changes its contents to the array arr_xy
#layout of basin.out:
#1  -950.00    10.00 200        > this line contains start, interval and
number of x values;
#    0.000000E+00               > remainder is a column of y values
#   -1.931787E-07
#   -5.713295E-07
#   -9.322559E-07
#   -1.071361E-06
#   -7.801342E-07
#    .....
start = int(float(list[1]))
interval = int(float(list[2]))
n = int(float(list[3]))


list[1] is a string, so if I'm not missing something,  start =
int(list[1]) will do just fine.

No, because list[1] is '-950.00' which will not parse as an int.

Kent

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