2

I have merge 3 tables from code in link: merge 3 csv file and create new file

Table E = Merge of 3 Tables (A,B &D)

But how i can change cell in Table E = 0 with blank? If cell in Table A, B, D is zero, then this cell in Table E (after Merge) = blank.

Minimal coding:

\documentclass{standalone}
\usepackage{filecontents}
\usepackage{datatool}

\begin{filecontents*}{A.csv}
date,colA
2016-01-01,0
2016-01-02,4
2016-01-03,2
\end{filecontents*}

\begin{filecontents*}{B.csv}
date,colB0,colB1,colB2,colB3
2016-01-01,0,b10,b11,b12
2016-01-02,0,0,b11,b12
2016-01-03,4,b20,b21,b22
\end{filecontents*}

\begin{filecontents*}{D.csv}
date,colD0,colD1,colD2,colD3
2016-01-01,0,d10,d11,d12
2016-01-03,4,d20,d21,d22
\end{filecontents*}

\DTLloaddb{E}{A.csv}
\DTLloaddb{B}{B.csv}
\DTLloaddb{D}{D.csv}

% Specific request
% Now, i want to create new file E with columns:
% Date colA colB0 colB1 colB2 colD0 colD1 colD2
\DTLforeach{E}{\Date=date}{\DTLgetvalueforkey{\tmp}{colB0}{B}{date}{\Date}\DTLappendtorow{colB0}{\DTLifnull{\tmp}{}{\tmp}}}
\DTLforeach{E}{\Date=date}{\DTLgetvalueforkey{\tmp}{colB1}{B}{date}{\Date}\DTLappendtorow{colB1}{\DTLifnull{\tmp}{}{\tmp}}}
\DTLforeach{E}{\Date=date}{\DTLgetvalueforkey{\tmp}{colB2}{B}{date}{\Date}\DTLappendtorow{colB2}{\DTLifnull{\tmp}{}{\tmp}}}
\DTLforeach{E}{\Date=date}{\DTLgetvalueforkey{\tmp}{colD0}{D}{date}{\Date}\DTLappendtorow{colD0}{\DTLifnull{\tmp}{}{\tmp}}}
\DTLforeach{E}{\Date=date}{\DTLgetvalueforkey{\tmp}{colD1}{D}{date}{\Date}\DTLappendtorow{colD1}{\DTLifnull{\tmp}{}{\tmp}}}
\DTLforeach{E}{\Date=date}{\DTLgetvalueforkey{\tmp}{colD2}{D}{date}{\Date}\DTLappendtorow{colD2}{\DTLifnull{\tmp}{}{\tmp}}}

\begin{document}
Table E 
\DTLsetseparator{,}
\DTLsetdelimiter{"}
\DTLsavedb{E}{E.csv} % doesn't write if before \begin{document}
\DTLdisplaydb{E}
\end{document}

In image: enter image description here

Thank you

2

Define a test for the entry being zero.

\documentclass[border=4]{standalone}
\usepackage{datatool}
\usepackage{pdftexcmds}

\begin{filecontents*}{A.csv}
date,colA
2016-01-01,0
2016-01-02,4
2016-01-03,2
\end{filecontents*}

\begin{filecontents*}{B.csv}
date,colB0,colB1,colB2,colB3
2016-01-01,0,b10,b11,b12
2016-01-02,0,0,b11,b12
2016-01-03,4,b20,b21,b22
\end{filecontents*}

\begin{filecontents*}{D.csv}
date,colD0,colD1,colD2,colD3
2016-01-01,0,d10,d11,d12
2016-01-03,4,d20,d21,d22
\end{filecontents*}

\DTLloaddb{E}{A.csv}
\DTLloaddb{B}{B.csv}
\DTLloaddb{D}{D.csv}

\makeatletter
\newcommand{\xDTLifzero}[1]{%
  \ifnum\pdf@strcmp{0}{#1}=\z@
    \expandafter\@firstoftwo
  \else
    \expandafter\@secondoftwo
  \fi
}
\makeatother

% Specific request
% Now, I want to create new file E with columns:
% Date colA colB0 colB1 colB2 colD0 colD1 colD2
\DTLforeach{E}{\Date=date}{%
  \DTLgetvalueforkey{\tmp}{colA}{E}{date}{\Date}%
  \DTLreplaceentryforrow{colA}{\DTLifnull{\tmp}{}{\xDTLifzero{\tmp}{}{\tmp}}}%
%
  \DTLgetvalueforkey{\tmp}{colB0}{B}{date}{\Date}%
  \DTLappendtorow{colB0}{\DTLifnull{\tmp}{}{\xDTLifzero{\tmp}{}{\tmp}}}%
%
  \DTLgetvalueforkey{\tmp}{colB1}{B}{date}{\Date}%
  \DTLappendtorow{colB1}{\DTLifnull{\tmp}{}{\xDTLifzero{\tmp}{}{\tmp}}}%
%
  \DTLgetvalueforkey{\tmp}{colB2}{B}{date}{\Date}%
  \DTLappendtorow{colB2}{\DTLifnull{\tmp}{}{\xDTLifzero{\tmp}{}{\tmp}}}%
%
  \DTLgetvalueforkey{\tmp}{colD0}{D}{date}{\Date}%
  \DTLappendtorow{colD0}{\DTLifnull{\tmp}{}{\xDTLifzero{\tmp}{}{\tmp}}}%
%
  \DTLgetvalueforkey{\tmp}{colD1}{D}{date}{\Date}%
  \DTLappendtorow{colD1}{\DTLifnull{\tmp}{}{\xDTLifzero{\tmp}{}{\tmp}}}%
%
  \DTLgetvalueforkey{\tmp}{colD2}{D}{date}{\Date}%
  \DTLappendtorow{colD2}{\DTLifnull{\tmp}{}{\xDTLifzero{\tmp}{}{\tmp}}}%
}

\begin{document}
Table E 
\DTLsetseparator{,}
\DTLsetdelimiter{"}
\DTLsavedb{E}{E.csv} % doesn't write if before \begin{document}
\DTLdisplaydb{E}
\end{document}

enter image description here

|improve this answer|||||

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.