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## Re: dataframe construction question

**From**: |
CdeMills |

**Subject**: |
Re: dataframe construction question |

**Date**: |
Mon, 8 Sep 2014 08:44:06 -0700 (PDT) |

shlagbaum wrote
>* Why the following works:*
>* *
>* octave:17> RHS={'a','b','c';double(1),'e','f'};*
>* octave:18> x=dataframe([]);*
>* FIXME -- should create a dataframe from the whole workspace*
>* octave:19> x(:,:)=RHS*
>* x = dataframe with 1 rows and 3 columns*
>* _1 a b c *
>* Nr double char char *
>* 1 1 e f *
>* *
>* but the following does not?*
>* *
>* octave:20> RHS={'a','b','c';'d','e','f'};*
>* octave:21> x=dataframe([]);*
>* FIXME -- should create a dataframe from the whole workspace*
>* octave:22> x(:,:)=RHS*
>* error: df_matassign: A(I,J): row index out of bounds; value 1 out of bound*
>* 0*
>* error: called from:*
>* error: *
>* /home/slava/octave/dataframe-1.0.0/@dataframe/private/df_matassign.m at*
>* line 186, column 15*
>* error: /home/slava/octave/dataframe-1.0.0/@dataframe/subsasgn.m at line*
>* 213, column 10*
>* error: assignment failed, or no method for 'class = cell'*
Hello,
I am the author of the dataframe package.
The idea about using the RHS method is to consider that the two first lines
are maybe special:
- first one may contain column names
- second may contain columns types (char, int, ...)
So, after having extracted the two first lines because all content are
strings, the procedure goes further in the analysis ... on an empty cell
array. I'm looking at that and will put out a new version shortly.
Regards
Pascal Dupuis
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