select only rows if its value in a particular column is more than 5 times its value in the other colum
<p>I have started to learn the the R very recently so forgive me if it's a novice question for someone. I want to extract the row from column "Bladder" which value is more than 5 times higher in compare to other column.</p>

<pre><code>gene     Adrenal    Amygdala    Bladder BoneMarrow
1007_s_at   10.46973369 11.26483864 100.43303178    9.907426976
1053_at 6.446570421 6.462840464 6.570665594 7.068326351
117_at  8.018137441 7.738652705 7.604989675 8.38937883
121_at  10.78168853 10.3223056  10.38043102 10.73936285
1255_g_at   5.625038847 6.132930765 5.526885199 5.448521716
1294_at 8.37142904  8.1019947   8.549260758 8.697436419
1316_at 6.237386633 6.429011484 6.083330287 6.295933456
1320_at 6.206410651 6.139873183 6.328348899 6.251521738
1405_i_at   6.588370219 5.949622255 7.420451672 8.823058974
</code></pre>

<p>Expected result</p>

<pre><code>gene     Adrenal    Amygdala    Bladder BoneMarrow
1007_s_at   10.46973369 11.26483864 100.43303178    9.907426976
</code></pre>

<p>I got this answer useful but I don't know how to apply for multiple columns
<a href="https://stackoverflow.com/questions/2854625/select-only-rows-if-its-value-in-a-particular-column-is-less-than-its-value-in-t">select only rows if its value in a particular column is less than its value in the other column</a></p>

<p>Thanks.</p>