<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">The error is telling you that the problem is in argument (1) of the function gsn_csm_contour_map, so data, and that the type is wrong. Quickly looking at your file it seems to me that you need to convert data to a numeric type (double or float) before plotting it.</div><div class="">String types of course can not be contoured :) </div><div class=""><br class=""></div><div class="">Have a look here <a href="https://www.ncl.ucar.edu/Document/Language/error_messages.shtml" class="">https://www.ncl.ucar.edu/Document/Language/error_messages.shtml</a>.</div><div class=""><br class=""></div><div class="">I think you may want to elaborate the data array a little bit before passing it to the contour function. I guess just reading from the text file will produce something that is not correctly dimensioned. </div><div class=""><br class=""></div><div class="">Cheers </div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">Il giorno 09 nov 2017, alle ore 18:53, Emma Nelson <<a href="mailto:enelson23@wisc.edu" class="">enelson23@wisc.edu</a>> ha scritto:</div><br class="Apple-interchange-newline"><div class=""><div id="divtagdefaultwrapper" dir="ltr" style="font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; font-size: 12pt; font-family: Calibri, Helvetica, sans-serif;" class=""><div style="margin-top: 0px; margin-bottom: 0px;" class="">Hi,</div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><br class="">I've been trying to plot a file with data from an Ozone station with its lat/lon data from another file. I've been following an example script but I keep getting an error that says, "<span class="">fatal:Argument type mismatch on argument (1) of (gsn_csm_contour_map) can not coerce" when I try to plot. Any help would be appreciated! Here is my script:</span></div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><span class=""><br class=""></span></div><p style="margin-top: 0px; margin-bottom: 0px;" class=""><span class=""></span></p><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; min-height: 13px;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class=""></span><br class=""></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">diri = "/Users/EmmaNelson/Desktop/"</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">fili = "Ozone SanAn2016.csv"</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">data = asciiread(diri+fili, -1, "string")</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">header = True</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">delim = ","</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; min-height: 13px;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class=""></span><br class=""></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">data2 = asciiread(diri+"O3 Stationlatlon.csv", -1, "string")</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">header = True</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">delim = ","</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; min-height: 13px;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class=""></span><br class=""></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">sloc = str_get_field(data2, 1, ",")</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">lat = tofloat(str_get_field(data2, 2, ",") )</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">lon = tofloat(str_get_field(data2, 3, ",") )</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; min-height: 13px;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class=""></span><br class=""></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">pltDir = "/Users/EmmaNelson/Desktop/"</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">pltNam = "Ozone"</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">pltType = "x11"</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; min-height: 13px;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class=""></span><br class=""></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">wks = gsn_open_wks(pltType,pltDir+pltNam)</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">gsn_define_colormap(wks,"WhViBlGrYeOrRe")</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; min-height: 13px;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class=""></span><br class=""></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">res = True</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">res@gsnFrame = False</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">res@gsnMaximize = True</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">res@pmTickMarkDisplayMode = "Always"</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; min-height: 13px;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class=""></span><br class=""></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">res@mpOutlineBoundarySets = "USStates"</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; min-height: 13px;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class=""></span><br class=""></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">res@cnFillOn = True</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">res@cnLinesOn = True</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">res@cnLineLabelsOn = True</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">res@sfXArray = lon</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">res@sfYArray = lat</span></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; min-height: 13px;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class=""></span><br class=""></div><div style="margin: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class="">map = gsn_csm_contour_map(wks,data,res)</span></div><br class=""><p style="margin-top: 0px; margin-bottom: 0px;" class=""></p></div><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">_______________________________________________</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; 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