Re: [eigen] find command or equivalent |

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*To*: eigen@xxxxxxxxxxxxxxxxxxx*Subject*: Re: [eigen] find command or equivalent*From*: Suresh Kumar <suresh.amritapuri@xxxxxxxxx>*Date*: Wed, 8 Sep 2010 16:13:17 -0700*Dkim-signature*: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:content-type; bh=pQkAIgttXPVygfnWWCnTIIwcL7F+Gg0/dqB4trmG4ys=; b=vNAmW9fldzhMoWdkEuOFAyfsWmUyZjk2TumQ3VlWc/ISL7GSOfyj9U4c3CJyxmGZ0Q 06cziacadRNgtidUYEJwqgB5xlZTwauFuZiGQm8lxt94Qkgi2neAYloJe2mNTEJd9DaN +HWMXla+uDanYHsVr1nZZEGUDrV30KI0LcOiA=*Domainkey-signature*: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=lSo1Kten6Wl0N45aVk/Nb1dL29UaiavaS2FKz2LV5dCCLBOOHMWhNOmnVcQXer2p03 ev0DJBi9VBdEzKhnT0wDcdwWHuCeR9JilrXJ5fqySl+0d4ocxUfemMt7zYCsX1XRXqwG pxC1txJUwSsuZZqW4xT4kAm85OPb/bQsbCmnw=

thanks, it worked, only thing is that I needed to include Eigen/Array.

suresh

--

R Suresh Kumar,

http://www.ee.ucr.edu/~sramachandranna

--

On Tue, Sep 7, 2010 at 11:40 PM, Gael Guennebaud <gael.guennebaud@xxxxxxxxx> wrote:

hi,

with eigen2 the following should do the job:

A = (A.cwise()<0.0001).select(0,A);

gael

On Wed, Sep 8, 2010 at 6:05 AM, Suresh Kumar

<suresh.amritapuri@xxxxxxxxx> wrote:

> hi

> I am using eigen2 in ubuntu 10.04. How to do this in eigen2?

> thanks

> suresh

>

> On Tue, Sep 7, 2010 at 7:27 PM, Benoit Jacob <jacob.benoit.1@xxxxxxxxx>

> wrote:

>>

>> 2010/9/7 Suresh Kumar <suresh.amritapuri@xxxxxxxxx>:

>> > Hi Gael,

>> > I get an error message like that when I used what you had suggested...

>> > class Eigen::Matrix3f’ has no member named ‘array’

>> > so what is the next step?

>> > thanks

>> > suresh

>>

>> Are you using eigen2 ? Gael's suggestion was for eigen3 (the

>> development branch).

>>

>> Benoit

>>

>> >

>> > On Fri, Sep 3, 2010 at 12:19 AM, Gael Guennebaud

>> > <gael.guennebaud@xxxxxxxxx>

>> > wrote:

>> >>

>> >> you can do:

>> >>

>> >> A = (A.array()<0.0001).select(0,A);

>> >>

>> >> where the "select" method mimics the c++ ?: operator.

>> >>

>> >> gael

>> >>

>> >>

>> >> On Fri, Sep 3, 2010 at 6:40 AM, Suresh Kumar

>> >> <suresh..amritapuri@xxxxxxxxx> wrote:

>> >> > Hi

>> >> > I want to replace all elements of a matrix, which are less than a

>> >> > threshold

>> >> > by zero. How to do it without writing a nested for loop?

>> >> > I am looking for something like this in matlab. A(A < 0.001) = 0

>> >> > where A

>> >> > is

>> >> > a matrix.

>> >> > Thanks

>> >> > suresh

>

> R Suresh Kumar,

> http://www.ee.ucr.edu/~sramachandranna

> --

> Dhyaana–moolam Guror murtih

> Puja-moolam Guroh padam

> Mantra – moolam Guror vakyam

> Moksha – moolam Guroh krpa.

>

--

R Suresh Kumar,

http://www.ee.ucr.edu/~sramachandranna

--

Dhyaana–moolam Guror murtih

Puja-moolam Guroh padam

Mantra – moolam Guror vakyam

Moksha – moolam Guroh krpa.**References**:**[eigen] find command or equivalent***From:*Suresh Kumar

**Re: [eigen] find command or equivalent***From:*Gael Guennebaud

**Re: [eigen] find command or equivalent***From:*Suresh Kumar

**Re: [eigen] find command or equivalent***From:*Benoit Jacob

**Re: [eigen] find command or equivalent***From:*Suresh Kumar

**Re: [eigen] find command or equivalent***From:*Gael Guennebaud

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