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POConvert latitude/longitude to state plane coordinates
 

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  1. POConvert latitude/longitude to state plane coordinates
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    <p>I've got a dataset with latitude and longitude which I'd like to convert to the state plane coordinates for Illinois East, using EPSG 2790 (<a href="http://spatialreference.org/ref/epsg/2790/" rel="nofollow noreferrer">http://spatialreference.org/ref/epsg/2790/</a>) or maybe ESRI 102672 (<a href="http://spatialreference.org/ref/esri/102672/" rel="nofollow noreferrer">http://spatialreference.org/ref/esri/102672/</a>).</p> <p>This has definitely been asked before; my code is based on the answers here (<a href="https://stackoverflow.com/questions/14880294/non-finite-transformation-detected-in-sptransform-in-rgdal-r-package">&quot;Non Finite Transformation Detected&quot; in spTransform in rgdal R Package</a> and <a href="http://r-sig-geo.2731867.n2.nabble.com/Converting-State-Plane-Coordinates-td5457204.html" rel="nofollow noreferrer">http://r-sig-geo.2731867.n2.nabble.com/Converting-State-Plane-Coordinates-td5457204.html</a>). </p> <p>But for some reason I can't get it to work:</p> <pre><code>library(rgdal) library(sp) data = data.frame(long=c(41.20,40.05), lat=c(-86.14,-88.15)) coordinates(data) &lt;- ~ long + lat proj4string(data) &lt;- CRS("+init=epsg:4326") # latitude/longitude data.proj &lt;- spTransform(data, CRS("+init=epsg:2790")) # illinois east </code></pre> <p>Gives:</p> <pre><code>non finite transformation detected: long lat 41.20 -86.14 Inf Inf Error in spTransform(data, CRS("+init=epsg:2790")) : failure in points 1 In addition: Warning message: In spTransform(data, CRS("+init=epsg:2790")) : 2 projected point(s) not finite </code></pre>
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