Hi folks, This is my first real foray in to using PDL for an entire program. The basis of the program is to use Perl to parse values from a text file that indicate specifics of [place1 place2 time measurement1 measurement2] I am using glue to build up the piddle for each col, row index. To analyze the data though I need to perform stats and histogram profiles for each place1,place2 of measurement1, measurement2. I thought that I could simply slice out the data using nslice and where. However, I don't get what I expect out when I try it on sample data. I have gone through the documentation, but have not found any examples to do what I am trying to do. My example data is : perldl> p $a [ [ 1 1 2 3 4] [ 1 1 7 8 9] [ 1 1 12 13 14] [ 2 1 17 18 19] [ 2 1 22 23 24] [ 2 1 27 28 29] [ 3 1 32 33 34] [ 3 1 37 38 39] [ 3 1 42 43 44] ]
To get the data for columns 3 & 4 (the measure columns) I used : p $a->nslice([3,4],$a->where($a(0)==1)) which provided me with : [ [ 8 9] [ 8 9] [13 14] ] What I expected to get was column 3 & 4 for the mask defined by : perldl> p ($a(0)==1)->(3,4) [ [1] [1] [1] [0] [0] [0] [0] [0] [0] ] Can't call method "nslice" without a package or object reference I don't know why I get the warning/error - but the correct rows were selected. What am I doing wrong and how do I get: [ [ 3 4] [ 8 9] [13 14] ] Thanks, Cliff Sobchuk Core RF Field Support Engineer Phone: (403) 769 2063 / ESN 758 Confidentiality Notice:This message and any attachments may contain information that is privileged and confidential. If you have reason to believe that you are not the intended recipient or a person responsible for delivering this message to an intended recipient, you are hereby notified that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have reason to believe that you are not the intended recipient or a person responsible for delivering this message to an intended recipient, please contact the sender immediately by reply email and destroy all copies of the original message.
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