Hi-
The SET REGION is a global setting, and so it applies to the axis xfile that you define in order to loop through your datasets. I would recommend not using SET REGION, but instead put the region into the plotting command,
use sst.nc
fill/l=1 SST[X=75:100,y=5:25]
Then, in your loop, it looks like the closing quotes are just in the wrong place. Both the end grave accent and the double quote need to be outside the entire file specification, which includes the dataset number where variable filenames is.
file/format=delimited/delimiter="\t"/var="lat,lon" "./`filenames[i=($ff),[d=2]`"
--Ansley
On 3/22/2011 4:14 AM, Steeven Paul Yerraguntla wrote:
Dear ferreters,
I wanted to plot few tracks over a filled plot. Lat, Longiutes of each track are in a single file. I need to apply a loop through many text files using repeat statement, to over plot tracks. To do so, i used a procedure given in archieves. I am encountering an error when running the following script. When i use "cancel region" before starting looping Error message says:
!-> REPEAT: NF:1
!-> define symbol ff = 1
!-> SET DATA/EZ/format=delimited/delimiter="\t"/var="lat,lon" "./1990_nov_01.txt"[d=2]
**ERROR: variable unknown or not in data set: FILENAMES[I=1]
cancel data./`filenames[i=1]`"[d=2]
Command file, command group, or REPEAT execution aborted
When i did not use "cancel region" statement before repeat statement error as follows
!-> REPEAT: NF:1
!-> define symbol ff = 1
!-> SET DATA/EZ/format=delimited/delimiter="\t"/var="lat,lon" "./1990_nov_01.txt"[d=2]
**ERROR: illegal limits: X axis of LON
plot/VS/line/thickness=2/color=black/over lon[d=3],lat[d=3]
Command file, command group, or REPEAT execution aborted
Please let me know to overcome this problem. sample text file for track plotting is attached to this mail. Journal i used as follows
-------------------------------------------------------------------------------------------------------------
use sst.nc
SET REGION/X=75:100/y=5:25
fill/l=1 SST
! looping through files
define axis/x=1:22:1 xfile
define grid/x=xfile gfile
file/grid=gfile/format=delimited/var="filenames" filenames.txt
! cancel region
repeat/range=1:22:1/name=nf ( ;\
define symbol ff = `nf` ;\
can var/all ;\
file/format=delimited/delimiter="\t"/var="lat,lon" "./`filenames[i=($ff)]`"[d=2] ;\
plot/VS/line/thickness=2/color=black/over lon[d=3],lat[d=3] ;\
cancel data "./`filenames[i=($ff)]`"[d=2];\
)
--------------------------------------------------------------------------------------------------------------
thanks n regards,
--
Steeven Paul Y
Research Fellow
National Institute of Oceanography(NIO)
Regional Center, Visakhapatnam (RCV)
176 Lawsons Bay Colony
Visakhapatnam - 530017