Table cell spanning multiple columns in tabulate

[Thomas Friedrich <friedrich@statistik.tu-dortmund.de>]

Hello ConTeXt users,

I am switching from texexec to context, and from table to tabulate.
Question: What is the equivalent for \use{2}\ReFormat[c]{text} in the
\table environment, when you what to do the same in the \tabulate
environment? I couldn't find the answer in the contextgarden.

Thank you for your help.

Please have a look at the following code.

~~~ snip ~~~
\enableregime[utf-8]

\starttext
\placetable[here][tab:tabulate]{Data of $13$ clinical trials
evaluating the efficacy of the Bacillus Calmette-Guérin
vaccine.}{\tfxx

\starttabulatehead
\FL
\NC Trial \NC Author \NC Year \NC Vaccinated\NC\NC Non
vaccinated\NC\NC Absolute \FR
\NC\NC\NC\NC Disease \NC No disease \NC  Disease \NC No disease \NC Latitude \LR
\HL
\stoptabulatehead

\starttabulate[|r|l|r|r|r|r|r|r|]
\HL
\NC A \NC Aronson              \NC 1948 \NC   4 \NC 119   \NC  11 \NC
128   \NC 44 \FR
\NC B \NC Ferguson \& Simes    \NC 1949 \NC   6 \NC 300   \NC  29 \NC
274   \NC 55 \MR
\NC C \NC Rosenthal et al      \NC 1960 \NC   3 \NC 228   \NC  11 \NC
209   \NC 42 \MR
\NC D \NC Hart \& Sutherland   \NC 1977 \NC  62 \NC 13536 \NC 248 \NC
12619 \NC 52 \MR
\NC E \NC Frimodt-Moller et al \NC 1973 \NC  33 \NC 5036  \NC  47 \NC
5761  \NC 13 \MR
\NC F \NC Stein \& Aronson     \NC 1953 \NC 180 \NC 1361  \NC 372 \NC
1079  \NC 44 \MR
\NC G \NC Vandiviere et al     \NC 1973 \NC   8 \NC 2537  \NC  10 \NC
619   \NC 19 \MR
\NC H \NC TPT Madras           \NC 1980 \NC 505 \NC 87886 \NC 499 \NC
87892 \NC 13 \MR
\NC I \NC Coetzee \& Berjak    \NC 1968 \NC  29 \NC 7470  \NC  45 \NC
7232  \NC 27 \MR
\NC J \NC Rosenthal et al      \NC 1961 \NC  17 \NC 1699  \NC  65 \NC
1600  \NC 42 \MR
\NC K \NC Comstock et al       \NC 1974 \NC 186 \NC 50448 \NC 141 \NC
27197 \NC 18 \MR
\NC L \NC Comstock \& Webster  \NC 1969 \NC   5 \NC 2493  \NC   3 \NC
2338  \NC 33 \MR
\NC M \NC Comstock et al       \NC 1976 \NC  27 \NC 16886 \NC  29 \NC
17825 \NC 33 \LR
\LL
\stoptabulate}

\placetable [here] [tab:table] {Data of $13$ clinical trials
evaluating the efficacy of the Bacillus Calmette-Guérin vaccine.}
{\tfxx
\starttable[|r|l|r|r|r|r|r|r|]
\HL
\NC Trial \NC Author \NC Year \NC \use{2}\ReFormat[c]{Vaccinated} \NC
\use{2}\ReFormat[c]{Non vaccinated} \NC Absolute \FR
\NC \NC  \NC  \NC Disease \NC No disease  \NC  Disease \NC No disease
\NC Latitude \LR
\HL
\NC A \NC Aronson              \NC 1948 \NC   4 \NC 119   \NC  11 \NC
128   \NC 44 \FR
\NC B \NC Ferguson \& Simes    \NC 1949 \NC   6 \NC 300   \NC  29 \NC
274   \NC 55 \MR
\NC C \NC Rosenthal et al      \NC 1960 \NC   3 \NC 228   \NC  11 \NC
209   \NC 42 \MR
\NC D \NC Hart \& Sutherland   \NC 1977 \NC  62 \NC 13536 \NC 248 \NC
12619 \NC 52 \MR
\NC E \NC Frimodt-Moller et al \NC 1973 \NC  33 \NC 5036  \NC  47 \NC
5761  \NC 13 \MR
\NC F \NC Stein \& Aronson     \NC 1953 \NC 180 \NC 1361  \NC 372 \NC
1079  \NC 44 \MR
\NC G \NC Vandiviere et al     \NC 1973 \NC   8 \NC 2537  \NC  10 \NC
619   \NC 19 \MR
\NC H \NC TPT Madras           \NC 1980 \NC 505 \NC 87886 \NC 499 \NC
87892 \NC 13 \MR
\NC I \NC Coetzee \& Berjak    \NC 1968 \NC  29 \NC 7470  \NC  45 \NC
7232  \NC 27 \MR
\NC J \NC Rosenthal et al      \NC 1961 \NC  17 \NC 1699  \NC  65 \NC
1600  \NC 42 \MR
\NC K \NC Comstock et al       \NC 1974 \NC 186 \NC 50448 \NC 141 \NC
27197 \NC 18 \MR
\NC L \NC Comstock \& Webster  \NC 1969 \NC   5 \NC 2493  \NC   3 \NC
2338  \NC 33 \MR
\NC M \NC Comstock et al       \NC 1976 \NC  27 \NC 16886 \NC  29 \NC
17825 \NC 33 \LR
\HL
\stoptable}
\stoptext
~~~ snip ~~~

Thomas
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