Did you try with default dataset which comes with ferret ? whether following commands are working ?
yes? SET DATA monthly_navy_winds
yes? GO gmt_power uwnd[x=180,y=0] uwnd x180y0 64
yes? PLOT x180y0_power
yes? GO overlay_bars x180y0_power x180y0_error redThanks and Regards,
Akshay Hegde
CSIR-National Institute of Oceanography, Dona Paula, Panjim, Goa -403004On Mon, Nov 11, 2013 at 11:55 AM, chinnu sachi <chinnu.sachi7@xxxxxxxxx> wrote:
My time axis is ok,I list it below. even I removed clobber ,still same error is coming.I can open spectrum1d with man spectrum1d
VARIABLE : L
axis TIME
FILENAME : v_test.nc
SUBSET : 600 points (TIME)
15-JAN-1958 00 / 1: 1.0
15-FEB-1958 00 / 2: 2.0
15-MAR-1958 00 / 3: 3.0
15-APR-1958 00 / 4: 4.0
15-MAY-1958 00 / 5: 5.0
15-JUN-1958 00 / 6: 6.0
15-JUL-1958 00 / 7: 7.0
15-AUG-1958 00 / 8: 8.0
15-SEP-1958 00 / 9: 9.0
15-OCT-1958 00 / 10: 10.0
15-NOV-1958 00 / 11: 11.0
15-DEC-1958 00 / 12: 12.0
15-JAN-1959 00 / 13: 13.0
15-FEB-1959 00 / 14: 14.0
15-MAR-1959 00 / 15: 15.0
15-APR-1959 00 / 16: 16.0
15-MAY-1959 00 / 17: 17.0
15-JUN-1959 00 / 18: 18.0
15-JUL-1959 00 / 19: 19.0
15-AUG-1959 00 / 20: 20.0
15-SEP-1959 00 / 21: 21.0
15-OCT-1959 00 / 22: 22.0
15-NOV-1959 00 / 23: 23.0
15-DEC-1959 00 / 24: 24.0On Mon, Nov 11, 2013 at 11:48 AM, Akshay Hegde <akshay.k.hegde@xxxxxxxxx> wrote:Sorry I forgot to mention make sure that you can open man page using following command since you are getting this error "sh: 1: spectrum1d: not found"
man spectrum1d
Thanks and Regards,
Akshay Hegde
CSIR-National Institute of Oceanography, Dona Paula, Panjim, Goa -403004On Mon, Nov 11, 2013 at 11:40 AM, Akshay Hegde <akshay.k.hegde@xxxxxxxxx> wrote:
Try something like thisGO gmt_power variable[x=180,y=0] grid output seg_len
and in your script you used both clobber and append
append ---> If file exists then append, otherwise create and write to itclobber ---> If the file exists then overwrite it, otherwise create and write to it
in your case you need to use only appendand Hows your Time axis ?
list t[gt=variable]
Thanks and Regards,
Akshay Hegde
CSIR-National Institute of Oceanography,
Dona Paula, Panjim, Goa -403004On Mon, Nov 11, 2013 at 10:32 AM, chinnu sachi <chinnu.sachi7@xxxxxxxxx> wrote:
I am getting an error error message while trying to run the gmt_power function. The details of the error for power spectrum as follows:Dear ferret users,
yes? go power.jnl
set mem/size = 650
Cached data cleared from memory
use v_test.nc
repeat/k=1:`20` ( go gmt_power V_NEW GHA1 gmt 256; list/file=test/clobber/append gmt_power;plot gmt_power)
!-> repeat/k=1:20 ( go gmt_power V_NEW GHA1 gmt 256; list/file=test/clobber/append gmt_power;plot gmt_power)
!-> REPEAT: K=1
LISTing to file gmt.tseries
>>> Using GMT command: spectrum1d gmt.tseries -Ngmt -S256 -D30.43583
sh: 1: spectrum1d: not found
**TMAP ERR: non-existent or not on line
gmt.xpower
SET DATA/EZ/var=freq gmt.xpower
Command file, command group, or REPEAT execution abortedAnd also when using FFTA command, error is coming like "Bailing out of external function "ffta":
Time axis must be a regular axis
**ERROR: error in external function" .But when gone through the mail archives i found a link stating that it happens when there is missing values. But in my data there is no missing value, in that region.
Thanks in advance--
Regards,
Chinnu Sachidanandan
Physical Oceanography Division
National Institute of Oceanography
csachidanandan@xxxxxxx
--
Regards,
Chinnu Sachidanandan
Physical Oceanography Division
National Institute of Oceanography
csachidanandan@xxxxxxx