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    <p>This can be solved using an eval-parse construct, although I strongly advice you <strong>not</strong> to use this construct. It often causes more problems than anything else. But I couldn't get a decent do.call way of doing it. </p> <pre><code>vector_of_functions = NULL for (i in 1:4) { vector_of_functions = c(vector_of_functions, eval(parse(text=paste("function(number) func(number=number, coefficient=",i,")")))) } </code></pre> <p>Reason is as Aaron explained: everything within the function definition is taken as is until the function evaluation. </p> <p>Small remark: this is especially a <strong>list</strong> of functions, and not a vector. It's impossible to have a vector of type "function". It's also absolutely useless, as you have to select the function using the index [[]] before you can use it. Then I'd just add the argument instead of defining a function for every possible value of one of the arguments.</p> <p>So what you want to achieve is unclear, but if you want to apply func with different coefficients, I wonder why you don't simply do:</p> <pre><code>&gt; x &lt;- c(10,20,30) &gt; sapply(1:4,function(y)func(number=x,coefficient=y)) [,1] [,2] [,3] [,4] [1,] 10 20 30 40 [2,] 20 40 60 80 [3,] 30 60 90 120 </code></pre> <hr> <p>A variation on the theme by Marek (avoiding the parsing):</p> <pre><code>vector_of_functions = NULL for (i in 1:4) { vector_of_functions = c(vector_of_functions, eval(substitute(function(number) func(number=number, coefficient=i),list(i=i)))) } </code></pre> <p>The 1L etc. you get, just indicate they're exact integers (that take less memory space).</p>
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    1. COInstead of `parse(text(` thing better use `substitute`: `eval(substitute(function(number) func(number=number, coefficient=i),list(i=i)))`
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    2. COAnyway it is list so line in loop can be changed to: vector_of_functions[[i]] = eval(substitute(function(number) func(number=number, coefficient=i),list(i=i)))
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      1. USWojciech Sobala
 

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