I have a sequence of data that I have modified to the following:
load 'tables/csv'
load 'graphics/plot'
x =: readcsv 'table_ctl.csv'
dat =: 4 {::|:x
dat
The data in question is pulling the fourth column, that has been transposed of the following sequence of the array. Below is a sample of the first five values for the column.
13.5598 13.6815 14.027 14.132 14.0104
However upon running:
plot dat
I get the following error:
|option not found: 13.5598: signal
| signal'option not found: ',j
Is this error due to the precision of the floating point values? Thank you.
You're getting this error as you're passing a list of boxes to plot, and plot is expecting some of these boxes to contain the data to plot, and some other boxes to contain control data. 13.5598 is not a valid option for a plot.
fread 'table_ctl.csv'
a,b,0,1,13.5598
a,b,0,1,13.6815
a,b,0,1,14.027
a,b,0,1,14.132
a,b,0,1,14.0104
4 {::|: readcsv 'table_ctl.csv'
┌───────┬───────┬──────┬──────┬───────┐
│13.5598│13.6815│14.027│14.132│14.0104│
└───────┴───────┴──────┴──────┴───────┘
Probably you were thinking that {:: automatically unboxes, but it only does this if the path you give it designates a single box. See the top text at Fetch. The other problem to have is that the contents of these boxes are strings, not floats:
$ > 4 {::|: readcsv 'table_ctl.csv'
5 7
|."1 > 4 {::|: readcsv 'table_ctl.csv'
8955.31
5186.31
720.41
231.41
4010.41
So, to plot your numbers: plot > makenum 4 {::|: readcsv 'table_ctl.csv' which starts with the list of boxes, then turns each box into a box of a float, then unboxes the list and plots it. makenum comes with readcsv and is like a smart ". each in this case, as it would leave non-numeric boxes alone.
There's a bit more to set up, but jd might also work for this:
fread 'table_ctl.cdefs'
1 label byte 1
2 name varbyte
3 enabled boolean
4 weight int
5 score float
options , LF NO \ 0 iso8601-char
load 'data/jd'
!!! Jd key: non-commercial use only!
jdwelcome_jd_ NB. run this sentence for important information
jdadminnew'temp'
CSVFOLDER=:'/path/to/csv/directory'
jd'csvrd table_ctl.csv data'
jd'info schema'
┌─────┬───────┬───────┬─────┐
│table│column │type │shape│
├─────┼───────┼───────┼─────┤
│data │label │byte │1 │
│data │name │varbyte│_ │
│data │enabled│boolean│_ │
│data │weight │int │_ │
│data │score │float │_ │
└─────┴───────┴───────┴─────┘
jd'get data score'
13.5598 13.6815 14.027 14.132 14.0104