Re: [ferret_users] let/like='z' --- use of quoted names

To: Ryo Furue <furue@xxxxxxxxxx>, saurabh rathore <rohitsrb2020@xxxxxxxxx>

Subject: Re: [ferret_users] let/like='z' --- use of quoted names

From: "Ansley C. Manke" <ansley.b.manke@xxxxxxxx>

Date: Tue, 24 Mar 2020 12:22:55 -0700

Arc-authentication-results: i=2; mx.google.com; dkim=pass header.i=@noaa.gov header.s=google header.b=EqamJZQ2; spf=pass (google.com: domain of ansley.b.manke@xxxxxxxx designates 209.85.220.41 as permitted sender) smtp.mailfrom=ansley.b.manke@xxxxxxxx; dmarc=pass (p=REJECT sp=NONE dis=NONE) header.from=noaa.gov

Arc-authentication-results: i=1; mx.google.com; dkim=pass header.i=@noaa.gov header.s=google header.b=EqamJZQ2; spf=pass (google.com: domain of ansley.b.manke@xxxxxxxx designates 209.85.220.41 as permitted sender) smtp.mailfrom=ansley.b.manke@xxxxxxxx; dmarc=pass (p=REJECT sp=NONE dis=NONE) header.from=noaa.gov

Arc-message-signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-archive:list-help:list-post:list-id:mailing-list:precedence :content-language:in-reply-to:mime-version:user-agent:date :message-id:references:cc:to:from:subject:dkim-signature; bh=UAkbyoomwM70c7FicSrJvnmrxhml0b+hX7KLeFXAJWQ=; b=IlheiXg/GCbk6VyDpr8h+p2cvxw8awY6o7NKAbEWWMfXYFBas2796w0Rw6Q41Y9jEt SL7D/ArE7Wf5f4t/AZyspEzcrcJLxuF+EIrlrxZdepkkdgUxvlwNmwi5hhbCSksvz2bP 86k4C7VXvAj8OtA4eDDlred0YwBguDuSPgy1Oieqh3sSnbDiD+hPxM9GdZyyGI8Q2V04 RCbyj7nOQw+RwLmB6KSYUl4GLejsLnKB/+KuO1btKZd845J0ptNpup2cJ6m7jwBw+VU3 pX38KOiW+p36PRtdRIIa0rHpv+hSwjdjlhFJuqpgBJzbUTJqBTyOajcPLWbDSQWHG4G5 Tbcw==

Arc-message-signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-language:in-reply-to:mime-version:user-agent:date :message-id:references:cc:to:from:subject:dkim-signature; bh=UAkbyoomwM70c7FicSrJvnmrxhml0b+hX7KLeFXAJWQ=; b=ji9Ay2cDPGF1923SkPhJFJppN5fYPJmKkg9SU3IPsRjhJaShNnecKYuW0UJLvs32BI sxhXqol7amfPF5020rRLHrRQFDYTDuvFWYJmyypwpGMlFVPJU4/Pr+U3vvala99V0bcP TKC+cz+xNX7S5CsynR73X170liyXz5tORfYrCDc0bcu7uVSBUx0hTp/ADqZTlDUJGgqc 1zTo+EjJzpuexcLMSHok7alImC22qlR9ZMGH1PtLMiK5YSbd+y3SYV1XZvMxiwrIEw0U J1SosHXLV1ysrSfHpGLNNpmSJAz4NY3YtUFbRKKEeyehRS7tOv4Ij8/g9QpDZFgCE/cv Pytg==

Arc-seal: i=2; a=rsa-sha256; t=1585077780; cv=pass; d=google.com; s=arc-20160816; b=EpCQC17wxKqot408lXk8qGYvAwXyn0bbmpeVXe29zjlk8d1TOqIZwzh/dI3VkIFupi pw7yuvB9sXgE5WTprp6bmFiLpN8MTaFTTWZI1TBuQ+tN2TjiozTiwbtCuZzBVDsvf9mR n/gwOhvj0CWFLgmWF4PeydmLcbIxZFt3Z4XBS0BnOvVLh2fprOqJIo7SRRVCWhyd8Edd rT8GgflFOcoiTLYBqQbYSuIzX6nQEuYxRuHUe9FvKTUJrf7BDvP1g9GiA0hGgORkhZEc mRVi1r8S9jpB8Fppn1+QIaW8dx4LMb76xOjDf2z5Dz+W6MVWoF0iAxCtn2khHVt4Arfq GmVA==

Arc-seal: i=1; a=rsa-sha256; t=1585077779; cv=none; d=google.com; s=arc-20160816; b=T8MXkcztMSN0NPFTfI3ZflfIkce0ulPr6rJ01Tf6qSSOgJnLVFzRkfJDcnBwIHwGWb 73Wu1u8gvGEkXFmtemNf3DIwIZ5yYp4A4gSd+NWPKlhkvl6qDPqdUQ5SD9eh00P0Dftb AOZypSMuPhlSSDbHWI0JkJJ6zx3x7PQ/3OM8OyWVuSmkK1jV+FH1oUSQlmXsLqU9CkXb +zfGd6x5TT5qaKFGPq4r2jQ5F6O1pgE+guIeztd3LzLpt0dT+c9e2PSdjAAfVsADe1jm Qlk9ENqEHFRWTKUKuTWWewFVWIr/RbX0FanIWydsZ4YKLLShoQPEgIYggCBoJmq7YUm4 HIBw==

Cc: ferret users <ferret_users@xxxxxxxx>

Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=noaa.gov; s=google; h=subject:from:to:cc:references:message-id:date:user-agent :mime-version:in-reply-to:content-language:x-original-sender :x-original-authentication-results:precedence:mailing-list:list-id :list-post:list-help:list-archive; bh=UAkbyoomwM70c7FicSrJvnmrxhml0b+hX7KLeFXAJWQ=; b=JyJLAfkWcZmh36zm7u3fZjgHU8XhR3maXm2+6Cu/YG0tinb/pecEkNRQmgeO9hMIBk j3LCYrkY74FomSK7x0CyjinGcgbnIc09qHyZE79fIR9Mo5F32tgynPoN6IMdSaSJb4fx Te8AyRX4u4rkNPX2bNqmVHa4tHGkXiy5SCesDWhbZ5BlvqfyqCBPd8enFtJZXcV5MaQ6 JcTPvvukWev4JaV+npli9ePVbi7GOCc7+/mg95vQDBeeFOLzX+kPBNknzno43DLFo8pS v9wZ1J8x/hS/KjD9W6LQZx3NcPD6/YtQVNJmP2m8FkuGArfogzseF5z2PGrhIKdGoUXj E6mA==

In-reply-to: <938d1bca-f498-6eb3-40ca-f25c3192d441@noaa.gov>

List-archive: <https://groups.google.com/a/noaa.gov/group/ferret_users/>

List-help: <https://support.google.com/a/noaa.gov/bin/topic.py?topic=25838>, <mailto:ferret_users+help@noaa.gov>

List-id: <ferret_users.noaa.gov>

List-post: <https://groups.google.com/a/noaa.gov/group/ferret_users/post>, <mailto:ferret_users@noaa.gov>

Mailing-list: list ferret_users@xxxxxxxx; contact ferret_users+owners@xxxxxxxx

References: <CAEwQpaLdmh+N==U0mhDRf3bzdBRRYGmmhsB1mAM-W+YMm3nrtQ@mail.gmail.com> <CAFXLzPjd1wPNeUm4=GRpoKP=32q-S8dFor5uuGyD+w28jrDhXA@mail.gmail.com> <CAEwQpaJcpptzEEHn94ybUrBH=0x8nAn8kDXbXGiTGWsZsHJ_HQ@mail.gmail.com> <938d1bca-f498-6eb3-40ca-f25c3192d441@noaa.gov>

Sender: owner-ferret_users@xxxxxxxx

User-agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0

Hi Ryo,

I have found and fixed the cause of this. Ferret has forever tried to be case-insensitive, letting users ignore the upper- or lower-case spelling of variables. Here there was a tangle in some of our logic for this because when the names are in quotes they should be handled in a case-sensitive way. (If your file had happened to use an upper-case Z, this would all work!)

Thank you for reporting this. The fix will be in our upcoming release.

Ansley

On 3/24/2020 9:43 AM, Ansley C. Manke wrote:

Hi Ryo,

Thanks for narrowing this down. This is definitely a bug. As you say the solution should be renaming the variable. It seems the attribute-access code isn't doing its job for these renamed variables. We'll look into that.

If you don't need attributes other than the ones Ferret has always automatically kept, the rename would work:

yes? use input_data.ncyes? set variable/name=rose 'z'

yes? shade/x=100:112/y=0:8 rose

would be labeled with the correct units and title. And SAVE etc would keep the units and title. But the attributes GMT_version, node_offset, and Conventions would not be on the variable "rose".

On 3/24/2020 7:33 AM, Ryo Furue wrote:

Hi Saurabh,

On Tue, Mar 24, 2020 at 3:29 PM saurabh rathore <rohitsrb2020@xxxxxxxxx> wrote:

https://ferret.pmel.noaa.gov/Ferret/faq/reserved-keywords

https://www.pmel.noaa.gov/maillists/tmap/ferret_users/fu_2016/msg00385.html

Thanks!

set var/name=newname 'problematic_name'

should be the best solution. And it almost works:

yes? set data ETOPO1_Ice_c_gmt4.grd

yes? set var/name=rose 'z'

yes? show attributes rose

**ERROR: variable unknown or not in data set: rose

yes? let/like=rose zzz = rose

yes? show attributes zzz

attributes for user-defined variables

zzz.missing_value = -1.E+34

zzz.Conventions = COARDS/CF-1.0

zzz.title = ETOPO1_Ice_c_gmt4.grd

zzz.GMT_version = 4.4.0

zzz.node_offset = 1

yes?

As you can see, one more level of indirection (zzz == rose == 'z') gives the desired results. This seems to be the best workaround.

Cheers,

Ryo

-- 
Ansley Manke
Science Data Integration Group
NOAA Pacific Marine Environmental Laboratory
7600 Sand Point Way NE
Seattle WA 98115

I am currently teleworking and am available Tue-Wed-Thu.

-- Ansley Manke Science Data Integration Group NOAA Pacific Marine Environmental Laboratory 7600 Sand Point Way NE Seattle WA 98115 I am currently teleworking and am available Tue-Wed-Thu.