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Re: [ferret_users] can not read two ascii files
Hi Addisu -
Ferret allows the use of several data sets with variables that might
have the exact same name (for example if you have two runs of a
model, both might have the variable "u"). Thus, if more than one data
set is brought in, the variables must be identified by data set name
as well as variable name.
plot/d=1 first
or
plot first[d=1]
or
plot/d=file1 first
or suppose you have several data sets and want to plot an overlay:
plot first[d=1],second[d=2],third[d=3]
Billy K
On Mar 15, 2007, at 5:57 AM, Addisu Hunegnaw wrote:
Dear Ferret users
I am just beggining to use ferret. I have to file to call into
ferret, file1 and file2.
I used the command:
FILE/VAR=first file1
FILE/VAR=second file2
When I tried to plot "second", it plots it but when I tried to plot
"first" I get the error
**ERROR: variable unknown or not in data set: first
The first file, file1 apparently does not exist any more as soon as
I load the second file, file2
Why is that ?
Addisu
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