getResult to Array gives NaN
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Hi all,
I'm having a bit of an issue with taking values from the results table and putting them into an array. The first column of the results table contains a string, the current images title stored as a variable such as "test.tif" all other columns contain numbers. The results table displays fine but when i loop through using getResult to put all the table values into an array, when i print the resultant array (Array.print) the values from the first column containing strings are listed as NaN. How can i correct this? Ultimately when i use this array to produce the final results table the first column is then filled with NaN. Thanks for the help, Matt -- Matt Pearson Microscopy Facility MRC Human Genetics Unit Institute of Genetics and Molecular Medicine (IGMM) University of Edinburgh Crewe Road EH4 2XU -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336. -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html |
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Good day Matt,
you can't have strings and numerical values in the same array. Therefore, you may convert the values to strings to end up with a pure string array. If you like to read the values back from the string array, you have to convert them from strings to numbers. HTH Herbie ::::::::::::::::::::::::::::::::::::::::::::: Am 24.10.16 um 17:22 schrieb PEARSON Matthew: > Hi all, > > I'm having a bit of an issue with taking values from the results > table and putting them into an array. The first column of the > results table contains a string, the current images title stored as a > variable such as "test.tif" all other columns contain numbers. The > results table displays fine but when i loop through using getResult > to put all the table values into an array, when i print the resultant > array (Array.print) the values from the first column containing > strings are listed as NaN. How can i correct this? Ultimately when > i use this array to produce the final results table the first column > is then filled with NaN. > > Thanks for the help, > > Matt > > > -- Matt Pearson Microscopy Facility MRC Human Genetics Unit Institute > of Genetics and Molecular Medicine (IGMM) University of Edinburgh > Crewe Road EH4 2XU > > > > > > -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html > > > > The University of Edinburgh is a charitable body, registered in > Scotland, with registration number SC005336. > > -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html > -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html |
Re: getResult to Array gives NaN
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Hi Herbie,
I did wonder about this but yet i have an array earlier in my macro which stores only 2 values, the first is a string and the second a number. Does this somehow indicate that specifically you cannot create an array of numbers and strings when extracting from the results table using getResult? Thanks, Matt -- Matt Pearson Microscopy Facility MRC Human Genetics Unit Institute of Genetics and Molecular Medicine (IGMM) University of Edinburgh Crewe Road EH4 2XU On 24 Oct 2016, at 16:36, Herbie <[hidden email]<mailto:[hidden email]>> wrote: Good day Matt, you can't have strings and numerical values in the same array. Therefore, you may convert the values to strings to end up with a pure string array. If you like to read the values back from the string array, you have to convert them from strings to numbers. HTH Herbie ::::::::::::::::::::::::::::::::::::::::::::: Am 24.10.16 um 17:22 schrieb PEARSON Matthew: Hi all, I'm having a bit of an issue with taking values from the results table and putting them into an array. The first column of the results table contains a string, the current images title stored as a variable such as "test.tif" all other columns contain numbers. The results table displays fine but when i loop through using getResult to put all the table values into an array, when i print the resultant array (Array.print) the values from the first column containing strings are listed as NaN. How can i correct this? Ultimately when i use this array to produce the final results table the first column is then filled with NaN. Thanks for the help, Matt -- Matt Pearson Microscopy Facility MRC Human Genetics Unit Institute of Genetics and Molecular Medicine (IGMM) University of Edinburgh Crewe Road EH4 2XU -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336. -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html |
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Matt,
perhaps the mentioned array is of the following type: Run this little macro: ////////////////////////// a = newArray("Just an Integer","1"); Array.show( a ); ////////////////////////// Just a guess Herbie ::::::::::::::::::::::::::::::::::::::::::::: Am 24.10.16 um 17:57 schrieb PEARSON Matthew: > Hi Herbie, > > I did wonder about this but yet i have an array earlier in my macro > which stores only 2 values, the first is a string and the second a > number. Does this somehow indicate that specifically you cannot > create an array of numbers and strings when extracting from the > results table using getResult? > > Thanks, > > Matt > > -- Matt Pearson Microscopy Facility MRC Human Genetics Unit Institute > of Genetics and Molecular Medicine (IGMM) University of Edinburgh > Crewe Road EH4 2XU > > > > > On 24 Oct 2016, at 16:36, Herbie > <[hidden email]<mailto:[hidden email]>> wrote: > > Good day Matt, > > you can't have strings and numerical values in the same array. > > Therefore, you may convert the values to strings to end up with a > pure string array. If you like to read the values back from the > string array, you have to convert them from strings to numbers. > > HTH > > Herbie > > ::::::::::::::::::::::::::::::::::::::::::::: Am 24.10.16 um 17:22 > schrieb PEARSON Matthew: Hi all, > > I'm having a bit of an issue with taking values from the results > table and putting them into an array. The first column of the > results table contains a string, the current images title stored as > a variable such as "test.tif" all other columns contain numbers. > The results table displays fine but when i loop through using > getResult to put all the table values into an array, when i print the > resultant array (Array.print) the values from the first column > containing strings are listed as NaN. How can i correct this? > Ultimately when i use this array to produce the final results table > the first column is then filled with NaN. > > Thanks for the help, > > Matt > > > -- Matt Pearson Microscopy Facility MRC Human Genetics Unit > Institute of Genetics and Molecular Medicine (IGMM) University of > Edinburgh Crewe Road EH4 2XU > > > > > > -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html > > > > The University of Edinburgh is a charitable body, registered in > Scotland, with registration number SC005336. > > -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html > > > -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html > > > -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html > -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html |
Re: getResult to Array gives NaN
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In reply to this post by PEARSON Matthew
Hi Herbie & Matt,
funny enough, the ImageJ macro language does support mixed arrays, having Strings and numbers (internally, both are type 'Variable'). E.g., the following macro works: a = newArray(1, "theString", PI); for (i=0; i<a.length; i++) print(a[i]); However, the getResult macro function is for numeric values only. If there is a String argument, it tries to interpret the string contents as a number (parse the String). You have to use getResultString for Strings. If you don't know beforehand whether it is a number or a string, you can try getResult, and, if it returns NaN, use getResultString. Michael ________________________________________________________________ On 2016-10-24 17:36, Herbie wrote: > Good day Matt, > > you can't have strings and numerical values in the same array. > > Therefore, you may convert the values to strings to end up with a pure > string array. If you like to read the values back from the string array, > you have to convert them from strings to numbers. > > HTH > > Herbie > > ::::::::::::::::::::::::::::::::::::::::::::: > Am 24.10.16 um 17:22 schrieb PEARSON Matthew: >> Hi all, >> >> I'm having a bit of an issue with taking values from the results >> table and putting them into an array. The first column of the >> results table contains a string, the current images title stored as a >> variable such as "test.tif" all other columns contain numbers. The >> results table displays fine but when i loop through using getResult >> to put all the table values into an array, when i print the resultant >> array (Array.print) the values from the first column containing >> strings are listed as NaN. How can i correct this? Ultimately when >> i use this array to produce the final results table the first column >> is then filled with NaN. >> >> Thanks for the help, >> >> Matt >> >> >> -- Matt Pearson Microscopy Facility MRC Human Genetics Unit Institute >> of Genetics and Molecular Medicine (IGMM) University of Edinburgh >> Crewe Road EH4 2XU >> >> >> >> >> >> -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html >> >> >> >> The University of Edinburgh is a charitable body, registered in >> Scotland, with registration number SC005336. >> >> -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html >> > > -- > ImageJ mailing list: http://imagej.nih.gov/ij/list.html -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html |
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Thank you Michael,
that's really funny. The macro language again surprise me! Good evening Herbie :::::::::::::::::::::::::::::::::::::::::::: Am 24.10.16 um 18:38 schrieb Michael Schmid: > Hi Herbie & Matt, > > funny enough, the ImageJ macro language does support mixed arrays, > having Strings and numbers (internally, both are type 'Variable'). E.g., > the following macro works: > > a = newArray(1, "theString", PI); > for (i=0; i<a.length; i++) > print(a[i]); > > However, the getResult macro function is for numeric values only. If > there is a String argument, it tries to interpret the string contents as > a number (parse the String). > > You have to use getResultString for Strings. > > If you don't know beforehand whether it is a number or a string, you can > try getResult, and, if it returns NaN, use getResultString. > > Michael > ________________________________________________________________ > On 2016-10-24 17:36, Herbie wrote: >> Good day Matt, >> >> you can't have strings and numerical values in the same array. >> >> Therefore, you may convert the values to strings to end up with a pure >> string array. If you like to read the values back from the string array, >> you have to convert them from strings to numbers. >> >> HTH >> >> Herbie >> >> ::::::::::::::::::::::::::::::::::::::::::::: >> Am 24.10.16 um 17:22 schrieb PEARSON Matthew: >>> Hi all, >>> >>> I'm having a bit of an issue with taking values from the results >>> table and putting them into an array. The first column of the >>> results table contains a string, the current images title stored as a >>> variable such as "test.tif" all other columns contain numbers. The >>> results table displays fine but when i loop through using getResult >>> to put all the table values into an array, when i print the resultant >>> array (Array.print) the values from the first column containing >>> strings are listed as NaN. How can i correct this? Ultimately when >>> i use this array to produce the final results table the first column >>> is then filled with NaN. >>> >>> Thanks for the help, >>> >>> Matt >>> >>> >>> -- Matt Pearson Microscopy Facility MRC Human Genetics Unit Institute >>> of Genetics and Molecular Medicine (IGMM) University of Edinburgh >>> Crewe Road EH4 2XU >>> >>> >>> >>> >>> >>> -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html >>> >>> >>> >>> The University of Edinburgh is a charitable body, registered in >>> Scotland, with registration number SC005336. >>> >>> -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html >>> >> >> -- >> ImageJ mailing list: http://imagej.nih.gov/ij/list.html > > -- > ImageJ mailing list: http://imagej.nih.gov/ij/list.html > -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html |
Re: getResult to Array gives NaN
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In reply to this post by Michael Schmid
Hi Michael and Herbie,
Great, you learn something every day! I think I can work with this. Thanks again, Matt -------- Original message -------- From: Michael Schmid <[hidden email]> Date: 24/10/2016 17:40 (GMT+00:00) To: [hidden email] Subject: Re: getResult to Array gives NaN Hi Herbie & Matt, funny enough, the ImageJ macro language does support mixed arrays, having Strings and numbers (internally, both are type 'Variable'). E.g., the following macro works: a = newArray(1, "theString", PI); for (i=0; i<a.length; i++) print(a[i]); However, the getResult macro function is for numeric values only. If there is a String argument, it tries to interpret the string contents as a number (parse the String). You have to use getResultString for Strings. If you don't know beforehand whether it is a number or a string, you can try getResult, and, if it returns NaN, use getResultString. Michael ________________________________________________________________ On 2016-10-24 17:36, Herbie wrote: > Good day Matt, > > you can't have strings and numerical values in the same array. > > Therefore, you may convert the values to strings to end up with a pure > string array. If you like to read the values back from the string array, > you have to convert them from strings to numbers. > > HTH > > Herbie > > ::::::::::::::::::::::::::::::::::::::::::::: > Am 24.10.16 um 17:22 schrieb PEARSON Matthew: >> Hi all, >> >> I'm having a bit of an issue with taking values from the results >> table and putting them into an array. The first column of the >> results table contains a string, the current images title stored as a >> variable such as "test.tif" all other columns contain numbers. The >> results table displays fine but when i loop through using getResult >> to put all the table values into an array, when i print the resultant >> array (Array.print) the values from the first column containing >> strings are listed as NaN. How can i correct this? Ultimately when >> i use this array to produce the final results table the first column >> is then filled with NaN. >> >> Thanks for the help, >> >> Matt >> >> >> -- Matt Pearson Microscopy Facility MRC Human Genetics Unit Institute >> of Genetics and Molecular Medicine (IGMM) University of Edinburgh >> Crewe Road EH4 2XU >> >> >> >> >> >> -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html >> >> >> >> The University of Edinburgh is a charitable body, registered in >> Scotland, with registration number SC005336. >> >> -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html >> > > -- > ImageJ mailing list: http://imagej.nih.gov/ij/list.html -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336. -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html |
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