You are so close! Just use the #/.~ with some special glue ;"1 0 to join the
nub ~. to the count.
(~. ;"1 0 ( #/.~))test
┌────────────┬─┐
│0 │1│
├────────────┼─┤
│1 │1│
├────────────┼─┤
│8 │1│
├────────────┼─┤
│27 │1│
├────────────┼─┤
│46 │1│
├────────────┼─┤
│125 │2│
├────────────┼─┤
│126 │1│
├────────────┼─┤
│334 │1│
├────────────┼─┤
│279 │1│
└────────────┴─┘
cheers, bob
On 2011-10-11, at 4:41 PM, David Vaughan wrote:
> Thanks, but there seems to be loads of ' ' after the digits:
>
> ]test=.10{.p 3^~i.9000x
> 0
> 1
> 8
> 27
> 46
> 125
> 126
> 334
> 125
> 279
> '125'-:"1 test
> 0 0 0 0 0 0 0 0 0 0
> '125 '-:"1 test
> 0 0 0 0 0 1 0 0 1 0
>
> On 12 Oct 2011, at 00:04, Ric Sherlock wrote:
>
>> You are trying to do something like:
>> '12345' = 7 5$'12345'
>> |length error
>> | '12345' =7 5$'12345'
>>
>> J doesn't know how to reconcile the list of 5 items with the list of 7
>> items (each of which are 5 items long).
>> You could do:
>> '12345' ="1 ] 7 5$'12345'
>> 1 1 1 1 1
>> 1 1 1 1 1
>> 1 1 1 1 1
>> 1 1 1 1 1
>> 1 1 1 1 1
>> 1 1 1 1 1
>> 1 1 1 1 1
>>
>> But I suspect you want something more like:
>> '12345' -:"1 ] 7 5$'12345'
>> 1 1 1 1 1 1 1
>>
>>
>>
>>
>> On Wed, Oct 12, 2011 at 11:51 AM, David Vaughan
>> <purpleblue...@googlemail.com> wrote:
>>> Thanks.
>>>
>>> I'm trying to get those items which are equal to a specific string, but I
>>> keep getting length errors, and I'm not quite sure what's going on:
>>>
>>> p=.(/:~)&":"0
>>> (#~ '012334556789' = ]) p 3^~i.9000x
>>> |length error
>>> | (#~'012334556789'=])p 3^~i.9000
>>>
>>> I've used a similar tacit verb when dealing with numbers, but I guess this
>>> not working has to do with the fact that it's on strings.
>>>
>>> On 11 Oct 2011, at 23:18, Henry Rich wrote:
>>>
>>>> (/: 1&{"1)
>>>>
>>>>> ./@>@:(1&{"1)
>>>>
>>>> there are other ways too
>>>>
>>>> Henry Rich
>>>>
>>>> On 10/11/2011 6:14 PM, David Vaughan wrote:
>>>>> I have strings and a numbers in adjacent boxes, like so:
>>>>>
>>>>> ┌─────────┬─┐
>>>>> │0 │1│
>>>>> ├─────────┼─┤
>>>>> │1 │1│
>>>>> ├─────────┼─┤
>>>>> │8 │1│
>>>>> ├─────────┼─┤
>>>>> │27 │1│
>>>>> ├─────────┼─┤
>>>>> │46 │1│
>>>>> ├─────────┼─┤
>>>>> │125 │2│
>>>>> ├─────────┼─┤
>>>>> │126 │1│
>>>>> ├─────────┼─┤
>>>>> │334 │1│
>>>>> ├─────────┼─┤
>>>>> │279 │1│
>>>>> ├─────────┼─┤
>>>>> │0001 │1│
>>>>> └─────────┴─┘
>>>>>
>>>>> How can I do things like sort or>./ on only the second box of each row?
>>>>> ----------------------------------------------------------------------
>>>>> For information about J forums see http://www.jsoftware.com/forums.htm
>>>> ----------------------------------------------------------------------
>>>> For information about J forums see http://www.jsoftware.com/forums.htm
>>>
>>> ----------------------------------------------------------------------
>>> For information about J forums see http://www.jsoftware.com/forums.htm
>> ----------------------------------------------------------------------
>> For information about J forums see http://www.jsoftware.com/forums.htm
>
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
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