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POR 2.15.2 Error in source - unexpected '}' - trying to submit homework project
 

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  1. POR 2.15.2 Error in source - unexpected '}' - trying to submit homework project
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    <p>I am currently doing R class on Coursera, and the tasks is asking to write a specific function, save code to a file named getmonitor.R and run test script to evaluate the result.</p> <p>I been able to write the function and it seems to perform according to expectations in terms of input/output. But when I am trying to execute the test script. I am getting the following error message: </p> <pre><code>Error in source("getmonitor.R", local = TRUE) : getmonitor.R:11:1: unexpected '}' 10: } 11: } ^ In addition: Warning messages: 1: In grepl("\n", lines, fixed = TRUE) : input string 19 is invalid in this locale 2: In grepl("\n", lines, fixed = TRUE) : input string 20 is invalid in this locale </code></pre> <p>I tried was asking on the coursera community, but could not get an answer, also there I cannot really post my code. I am hoping I could find some help here. Below I'll provide the steps to reproduce.</p> <p>Function which needs to be created is defined as follows: "Write a function named 'getmonitor' that takes three arguments: 'id', 'directory', and 'summarize'. Given a monitor ID number, 'getmonitor' reads that monitor's particulate matter data from the directory specified in the 'directory' argument and returns a data frame containing that monitor's data. If 'summarize = TRUE', then 'getmonitor' produces a summary of the data frame with the 'summary' function and prints it to the console."</p> <p>Here is my solution to that:</p> <pre><code>&gt; getmonitor &lt;- function(id, directory, summarize = FALSE) { + filename &lt;- paste("/Users/siarhei/desktop/",directory,"/",sprintf("%03s", as.character(id)),".csv", sep="") + data &lt;- read.csv(filename) + if (summarize == TRUE) { + print(summary(data)) + } + } </code></pre> <p>If I run getmonitor(1,'specdata',TRUE), I am getting expected output.</p> <p>And then run command <code>save(getmonitor, file="getmonitor.R")</code> to save file to my wd according to course instructions. After that I run the test script, which is:</p> <pre><code>source("http://spark-public.s3.amazonaws.com/compdata/scripts/getmonitor-test.R") getmonitor.testscript() </code></pre> <p>What is supposed to happen here is that R would generate 2 output files, which I can submit online. However all I could get so far is an error above. Since the function is working properly, it seems like it's just some error in reading the file, but I could not figure that out. </p> <p>Would be really grateful for any tips here. If there's any chance to go online to figure that out in chat or hangout, I'd be extremely cool and helpful!</p> <p>Thanks!</p>
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    1. USSergey Samusev
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      1. POR 2.15.2 Error in source - unexpected '}' - trying to submit homework project
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    1. COBy "save code to a file", they probably mean to copy-paste your code into a file, do not use the `save` function which creates a binary file holding the object.
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      1. USflodel
 

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