python - SFrame from numpy array -


i create sframe numpy array:

what want:

np.arange(16).reshape(4, 4)

=>

+----+----+----+----+ | 0  | 1  | 2  | 3  | +----+----+----+----+ | 0  | 1  | 2  | 3  | | 4  | 5  | 6  | 7  | | 8  | 9  | 10 | 11 | | 12 | 13 | 14 | 15 | +----+----+----+----+ [4 rows x 4 columns]

if do:

print sframe(np.arange(16).reshape(4, 4))

i get:

+--------------------------+ |            x1            | +--------------------------+ |   [0.0, 1.0, 2.0, 3.0]   | |   [4.0, 5.0, 6.0, 7.0]   | |  [8.0, 9.0, 10.0, 11.0]  | | [12.0, 13.0, 14.0, 15.0] | +--------------------------+ [4 rows x 1 columns]

i can want if convert numpy array pandas dataframe , pandas dataframe sframe:

print sframe(pd.dataframe(np.arange(16).reshape(4, 4)))  +----+----+----+----+ | 0  | 1  | 2  | 3  | +----+----+----+----+ | 0  | 1  | 2  | 3  | | 4  | 5  | 6  | 7  | | 8  | 9  | 10 | 11 | | 12 | 13 | 14 | 15 | +----+----+----+----+ [4 rows x 4 columns]

the question is: "how can create sfame numpy array in way pandas dataframe reads it(array nxm => dataframe n rows , m columns), without using pandas intermediate step?

i has issue, find multi-indexing hard in sframe.

may silly fix still workable;

from graphlab import sframe,sarray  data=np.arange(16).reshape(4, 4).t  sf=sframe(map(sarray,data)

should result in this

x1  x2  x3  x4 0   1   2   3 4   5   6   7 8   9   10  11 12  13  14  15

Comments

Post a Comment

Popular posts from this blog

jOOQ update returning clause with Oracle -

according http://www.jooq.org/doc/3.8/manual/sql-building/sql-statements/update-statement/ jooq doesn't support returning clause in update statements databases except firebird , postgres. does know, still correct oracle jooq? according oracle's documentation, oracle db supports returning clase delete, insert, or update statements. incorrect manual you're right - manual wrong , should fixed: https://github.com/jooq/jooq/issues/5470 single row update returning jooq 3.8 added support single row update .. returning statements. internally, uses callablestatement , pl/sql block of form: begin update "my_table" set "my_table"."column" = 'xyz' "my_table"."id" = 1 returning "my_table"."id", "my_table"."column" ?, ?; ? := sql%rowcount; end; the relevant issue is: https://github.com/jooq/jooq/issues/5190 multi row update returning a...
Read more

java - Warning equals/hashCode on @Data annotation lombok with inheritance -

i have entity inherits other. on other hand, i'm using lombok project reduce boilerplate code, put @data annotation. annotation @data inheritance produces next warning: generating equals/hashcode implementation without call superclass, though class not extend java.lang.object. if intentional, add '@equalsandhashcode(callsuper=false)' type. is advisable add annotation @equalsandhashcode (callsuper = true) or @equalsandhashcode (callsuper = false) ? if not added, 1 callsuper=false or callsuper=true ? the default value false . 1 if don't specify , ignore warning. yes, recommended add @equalsandhashcode annotation on @data annotated classes extend else object. cannot tell if need true or false , depends on class hierarchy, , need examined on case-by-case basis. however, project or package, can configure in lombok.config call super methods if not direct subclass of object. lombok.equalsandhashcode.callsuper = call for configuration system ...
Read more

java - BasicPathUsageException: Cannot join to attribute of basic type -

i using java 8 jpa (hibernate 5.2.1). have clause works perfectly, until introduce clause make use foreign key table values too. i getting following error: basicpathusageexception: cannot join attribute of basic type i think problem related fact have join table, , not sure how create join using join table. employee - employee_category - category model (employee.java): @manytomany(cascade = cascadetype.all, fetch=fetchtype.eager) @jointable ( name="employee_category", joincolumns={ @joincolumn(name="emp_id", referencedcolumnname="id") }, inversejoincolumns={ @joincolumn(name="cat_id", referencedcolumnname="id") } ) private set<category> categories; model (category.java): @id private string id; jpa when introduce following code, fails error above (i think problem new piece of code): join<t, category> category = from.join("id"); predicates.add(criteriabuilder.like(category....
Read more