<p>I tried with </p>
<pre><code>11, 101, 1001
12 , 102, 1002
13, 103, 1003
14, 104, 1004
</code></pre>
<p>which successfully transposed to:</p>
<pre><code>[INFO ] 1.1000e+01 1.2000e+01 1.3000e+01 1.4000e+01
[INFO ] 1.0100e+02 1.0200e+02 1.0300e+02 1.0400e+02
[INFO ] 1.0010e+03 1.0020e+03 1.0030e+03 1.0040e+03
</code></pre>
<p>But when I replaced 12 with a, the result was</p>
<pre><code>[INFO ] 0 1.0000e+00 1.3000e+01 1.4000e+01
[INFO ] 1.0100e+02 1.0200e+02 1.0300e+02 1.0400e+02
[INFO ] 1.0010e+03 1.0020e+03 1.0030e+03 1.0040e+03
[INFO ] 2 mappings in dimension 0.
</code></pre>
<p>which means that 11 and 12 are mapped as categories. (which I also think it is unintended?)</p>
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