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POReshape data from long to wide, with time in new wide variable name
 

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    <p>I have a data frame that I would like to merge from long to wide format, but I would like to have the time embedded into the variable name in the wide format. Here is an example data set with the long format:</p> <pre><code>id &lt;- as.numeric(rep(1,16)) time &lt;- rep(c(5,10,15,20), 4) varname &lt;- c(rep("var1",4), rep("var2", 4), rep("var3", 4), rep("var4", 4)) value &lt;- rnorm(16) tmpdata &lt;- as.data.frame(cbind(id, time, varname, value)) &gt; tmpdata id time varname value 1 5 var1 0.713888426169224 1 10 var1 1.71483653545922 1 15 var1 -1.51992072577836 1 20 var1 0.556992407683219 .... 4 20 var4 1.03752019932467 </code></pre> <p>I would like this in a wide format with the following output:</p> <pre><code>id var1.5 var1.10 var1.15 var1.20 .... 1 0.71 1.71 -1.51 0.55 (and so on) </code></pre> <p>I've tried using reshape function in base R without success, and I was not sure how to accomplish this using the reshape package, as all of the examples put time as another variable in the wide format. Any ideas? </p>
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