[
https://issues.apache.org/jira/browse/SYSTEMML-1824?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Matthias Boehm updated SYSTEMML-1824:
-
Description:
Given a frame input with 3 rows and column names {{name1, name2}}, the
following script produces incorrect results:
{code}
X = read("X.csv", data_type="frame", format="csv", header=TRUE);
spec = "{ids: false, recode: [ name1, name2 ]}";
[Y,M] = transformencode(target=X, spec=spec);
spec2 = "{ids: false, recode: [ name2 ]}";
Z = transformapply(target=X[,2], spec=spec2, meta=M)
print(toString(Z));
{code}
The output is supposed to be 3x1 and properly recoded but currently returns
{code}
NaN
NaN
NaN
{code}
was:
Given a frame input with column names {{name1, name2}}, the following script
produces incorrect results:
{code}
X = read("X.csv", data_type="frame", format="csv", header=TRUE);
spec = "{ids: false, recode: [ name1, name2 ]}";
[Y,M] = transformencode(target=X, spec=spec);
spec2 = "{ids: false, recode: [ name2 ]}";
Z = transformapply(target=X[,2], spec=spec2, meta=M)
print(toString(Z));
{code}
The output is supposed to be 1x3 and properly recoded but currently returns
{code}
NaN
NaN
NaN
{code}
> Wrong transformapply output with col name specification and subset of cols
> --
>
> Key: SYSTEMML-1824
> URL: https://issues.apache.org/jira/browse/SYSTEMML-1824
> Project: SystemML
> Issue Type: Bug
>Reporter: Matthias Boehm
>
> Given a frame input with 3 rows and column names {{name1, name2}}, the
> following script produces incorrect results:
> {code}
> X = read("X.csv", data_type="frame", format="csv", header=TRUE);
> spec = "{ids: false, recode: [ name1, name2 ]}";
> [Y,M] = transformencode(target=X, spec=spec);
> spec2 = "{ids: false, recode: [ name2 ]}";
> Z = transformapply(target=X[,2], spec=spec2, meta=M)
> print(toString(Z));
> {code}
> The output is supposed to be 3x1 and properly recoded but currently returns
> {code}
> NaN
> NaN
> NaN
> {code}
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