Re: [ferret_users] [Doubt in listing corresponding values a variable]

[Ansley Manke <a.c.manke@xxxxxxxxx>]

Hi,

I believe you can do this using the transformation @WEQ.  Please see the examples and explanation in the Users Guide,

https://ferret.pmel.noaa.gov/Ferret/documentation/users-guide/variables-xpressions/XPRESSIONS#_VPINDEXENTRY_532

It looks as though there are discussions of @WEQ in the Archives of this list, which might give you  more ideas.

Ansley

On 4/1/2021 1:33 PM, Sivaiah Borra wrote:

Dear Ferreters,

I have .nc data in which there are many variables  but only 2 dimensions that are l and m. l is time (l=1:365 ) and m is no events occurred (m=1:1753). so,  I want to list a variable by based on specific condition that is l=@loc:o

Example. variable called 'dist2land', so list/m=1:1753 dist2land[l=@loc:0], 

then I am getting list of 'dist2land' when it become 0 during entire l from 1 to 365 in each event from 1 to 1753. Now, I want to list the another variable called 'wind' corresponds to the list of 'dist2land'. 

How to list the variable corresponds to another variable being extracted on specific condition

Example:

I have data like this for each value of m(1:1753), L ranges from 1 to 365 shown below

L          dist2land        wind

1                  15                 50

2                  05                45  

3                   0                 15

4                   45                47

.                     .                      .

.                     .                       .

.                     .                       .

upto 365       25                  45

Now, I have list the data of dist2land and corresponding wind when dist2land value is 0.

i.e.  l=3, corresponding wind is 15. it should be done upto last value of m .i.e. 1753.

Thank you.

 

Thanks & Regards

B. Sivaiah

Research Scholar

Dept. of Meteorology & Oceanography

Andhra University

Visakhapatnam - 530003

INDIA - 91-9676155827