title: Turning field values into column names in an R data frame
body: <p>Hello I have the following dataframe returned using the RBloomberg library:</p>
  
  <pre><code>&gt; tt &lt;- bdh(conn, secs, "last price", "20110501")
  &gt; tt
            ticker       date last price
  1  EURUSD Curncy 2011-05-01         NA
  2  EURUSD Curncy 2011-05-02     1.4830
  3  EURUSD Curncy 2011-05-03     1.4825
  4  EURUSD Curncy 2011-05-04     1.4827
  5  EURUSD Curncy 2011-05-05     1.4539
  6  EURUSD Curncy 2011-05-06     1.4316
  7  EURUSD Curncy 2011-05-07         NA
  8  EURUSD Curncy 2011-05-08         NA
  9  USDZAR Curncy 2011-05-01         NA
  10 USDZAR Curncy 2011-05-02     6.6090
  11 USDZAR Curncy 2011-05-03     6.6394
  12 USDZAR Curncy 2011-05-04     6.6837
  13 USDZAR Curncy 2011-05-05     6.7250
  14 USDZAR Curncy 2011-05-06     6.7051
  15 USDZAR Curncy 2011-05-07         NA
  16 USDZAR Curncy 2011-05-08         NA
  17 USDTRY Curncy 2011-05-01         NA
  18 USDTRY Curncy 2011-05-02     1.5218
  19 USDTRY Curncy 2011-05-03     1.5336
  20 USDTRY Curncy 2011-05-04     1.5471
  21 USDTRY Curncy 2011-05-05     1.5488
  22 USDTRY Curncy 2011-05-06     1.5445
  23 USDTRY Curncy 2011-05-07         NA
  24 USDTRY Curncy 2011-05-08         NA
  25 USDBRL Curncy 2011-05-01         NA
  26 USDBRL Curncy 2011-05-02     1.5893
  27 USDBRL Curncy 2011-05-03     1.5876
  28 USDBRL Curncy 2011-05-04     1.6182
  29 USDBRL Curncy 2011-05-05     1.6220
  30 USDBRL Curncy 2011-05-06     1.6149
  31 USDBRL Curncy 2011-05-07         NA
  32 USDBRL Curncy 2011-05-08         NA
  33 USDINR Curncy 2011-05-01         NA
  34 USDINR Curncy 2011-05-02    44.3350
  35 USDINR Curncy 2011-05-03    44.5150
  36 USDINR Curncy 2011-05-04    44.4675
  37 USDINR Curncy 2011-05-05    44.7625
  38 USDINR Curncy 2011-05-06    44.7950
  39 USDINR Curncy 2011-05-07         NA
  40 USDINR Curncy 2011-05-08         NA
  </code></pre>
  
  <p>How do I turn it into something that looks more like this (ie the ticker column values have become the column names)?</p>
  
  <pre><code>Date    EURUSD Curncy   USDZAR Curncy   USDTRY Curncy   USDBRL Curncy   USDINR Curncy
  2011-05-01          NA          NA          NA          NA          NA
  2011-05-02      1.4830      6.6090      1.5218      1.5893     44.3350
  2011-05-03      1.4825      6.6394      1.5336      1.5876     44.5150
  2011-05-04      1.4827      6.6837      1.5471      1.6182     44.4675
  2011-05-05      1.4539      6.7250      1.5488      1.6220     44.7625
  2011-05-06      1.4316      6.7051      1.5445      1.6149     44.7950
  2011-05-07          NA          NA          NA          NA          NA
  2011-05-08          NA          NA          NA          NA          NA
  </code></pre>