Can't access MLDataTable columns by name
I created a MLDataTable by reading in a CSV. When I print the MLDataTable, it appears to have column names.
Columns:
data_id integer
iso integer
event_id_cnty string
event_id_no_cnty integer
...
but when I try to access them it says there are no columns with those names
print(dataTable.columnTypes)
[:]
print(dataTable.columnNames)
swift macos-mojave createml
asked Nov 26 '18 at 7:12
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I created a MLDataTable by reading in a CSV. When I print the MLDataTable, it appears to have column names.
Columns:
data_id integer
iso integer
event_id_cnty string
event_id_no_cnty integer
...
but when I try to access them it says there are no columns with those names
print(dataTable.columnTypes)
[:]
print(dataTable.columnNames)
swift macos-mojave createml
asked Nov 26 '18 at 7:12
忙进忙出忙进忙出
13114
add a comment |
I created a MLDataTable by reading in a CSV. When I print the MLDataTable, it appears to have column names.
Columns:
data_id integer
iso integer
event_id_cnty string
event_id_no_cnty integer
...
but when I try to access them it says there are no columns with those names
print(dataTable.columnTypes)
[:]
print(dataTable.columnNames)
swift macos-mojave createml
asked Nov 26 '18 at 7:12
忙进忙出忙进忙出
13114
I created a MLDataTable by reading in a CSV. When I print the MLDataTable, it appears to have column names.
Columns:
data_id integer
iso integer
event_id_cnty string
event_id_no_cnty integer
...
but when I try to access them it says there are no columns with those names
print(dataTable.columnTypes)
[:]
print(dataTable.columnNames)
swift macos-mojave createml
swift macos-mojave createml
asked Nov 26 '18 at 7:12
忙进忙出忙进忙出
13114
asked Nov 26 '18 at 7:12
忙进忙出忙进忙出
13114
edited Nov 26 '18 at 7:29
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asked Nov 26 '18 at 7:12
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13114
asked Nov 26 '18 at 7:12
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13114
asked Nov 26 '18 at 7:12
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13114
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1 Answer
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I figured it out. I tried to add a new column:
dataTable.addColumn(column, named: "more_strings")
it would failed with this error:
generic(reason: "Column \"more_strings\" has different size than current columns!")
but I continued on experimenting with the playground thinking that line wouldn't make a difference to the data already in the table. Apparently failing to add a column wipes out the table in Xcode 10.1 playgrounds. After I commented out the addColumn line I could access the columns by name.
answered Nov 26 '18 at 18:25
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I figured it out. I tried to add a new column:
dataTable.addColumn(column, named: "more_strings")
it would failed with this error:
generic(reason: "Column \"more_strings\" has different size than current columns!")
but I continued on experimenting with the playground thinking that line wouldn't make a difference to the data already in the table. Apparently failing to add a column wipes out the table in Xcode 10.1 playgrounds. After I commented out the addColumn line I could access the columns by name.
answered Nov 26 '18 at 18:25
忙进忙出忙进忙出
13114
add a comment |
I figured it out. I tried to add a new column:
dataTable.addColumn(column, named: "more_strings")
it would failed with this error:
generic(reason: "Column \"more_strings\" has different size than current columns!")
but I continued on experimenting with the playground thinking that line wouldn't make a difference to the data already in the table. Apparently failing to add a column wipes out the table in Xcode 10.1 playgrounds. After I commented out the addColumn line I could access the columns by name.
answered Nov 26 '18 at 18:25
忙进忙出忙进忙出
13114
add a comment |
I figured it out. I tried to add a new column:
dataTable.addColumn(column, named: "more_strings")
it would failed with this error:
generic(reason: "Column \"more_strings\" has different size than current columns!")
but I continued on experimenting with the playground thinking that line wouldn't make a difference to the data already in the table. Apparently failing to add a column wipes out the table in Xcode 10.1 playgrounds. After I commented out the addColumn line I could access the columns by name.
answered Nov 26 '18 at 18:25
忙进忙出忙进忙出
13114
I figured it out. I tried to add a new column:
dataTable.addColumn(column, named: "more_strings")
it would failed with this error:
generic(reason: "Column \"more_strings\" has different size than current columns!")
but I continued on experimenting with the playground thinking that line wouldn't make a difference to the data already in the table. Apparently failing to add a column wipes out the table in Xcode 10.1 playgrounds. After I commented out the addColumn line I could access the columns by name.
answered Nov 26 '18 at 18:25
忙进忙出忙进忙出
13114
answered Nov 26 '18 at 18:25
忙进忙出忙进忙出
13114
answered Nov 26 '18 at 18:25
忙进忙出忙进忙出
13114
answered Nov 26 '18 at 18:25
忙进忙出忙进忙出
13114
13114
add a comment |
add a comment |
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