Mercurial > pylearn
comparison test_dataset.py @ 106:cf9bdb1d9656
added test
| author | Frederic Bastien <bastienf@iro.umontreal.ca> |
|---|---|
| date | Tue, 06 May 2008 16:41:45 -0400 |
| parents | e1a004b21daa |
| children | 5bfcb7e5df4a |
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| 105:8c0a1b11b007 | 106:cf9bdb1d9656 |
|---|---|
| 33 print "take a slice and look at field y",ds[1:6:2]["y"] | 33 print "take a slice and look at field y",ds[1:6:2]["y"] |
| 34 | 34 |
| 35 def test_ArrayDataSet(): | 35 def test_ArrayDataSet(): |
| 36 #don't test stream | 36 #don't test stream |
| 37 #tested only with float value | 37 #tested only with float value |
| 38 #test with y too | 38 #don't always test with y |
| 39 #test missing value | 39 #don't test missing value |
| 40 | 40 #don't test with tuple |
| 41 #don't test proterties | |
| 41 def test_iterate_over_examples(array,ds): | 42 def test_iterate_over_examples(array,ds): |
| 42 #not in doc!!! | 43 #not in doc!!! |
| 43 i=0 | 44 i=0 |
| 44 for example in range(len(ds)): | 45 for example in range(len(ds)): |
| 45 assert (ds[example]['x']==a[example][:3]).all() | 46 assert (ds[example]['x']==a[example][:3]).all() |
| 261 if len(ds)>5: | 262 if len(ds)>5: |
| 262 ds[[1,2,3]] | 263 ds[[1,2,3]] |
| 263 for x in ds: | 264 for x in ds: |
| 264 pass | 265 pass |
| 265 | 266 |
| 266 assert have_raised("ds['h']") # h is not defined... | |
| 267 assert have_raised("ds[['x']]") # h is not defined... | |
| 268 assert not have_raised("ds['x']") | |
| 269 assert have_raised("ds["+str(len(ds))+"]") # index not defined | |
| 270 assert not have_raised("ds["+str(len(ds)-1)+"]") | |
| 271 | |
| 272 #ds[:n] returns a dataset with the n first examples. | 267 #ds[:n] returns a dataset with the n first examples. |
| 273 ds2=ds[:3] | 268 ds2=ds[:3] |
| 274 assert isinstance(ds2,DataSet) | 269 assert isinstance(ds2,DataSet) |
| 275 test_ds(ds,ds2,index=[0,1,2]) | 270 test_ds(ds,ds2,index=[0,1,2]) |
| 271 del ds2 | |
| 276 | 272 |
| 277 #ds[i1:i2:s]# returns a ds with the examples i1,i1+s,...i2-s. | 273 #ds[i1:i2:s]# returns a ds with the examples i1,i1+s,...i2-s. |
| 278 ds2=ds[1:7:2] | 274 ds2=ds[1:7:2] |
| 279 assert isinstance(ds2,DataSet) | 275 assert isinstance(ds2,DataSet) |
| 280 test_ds(ds,ds2,[1,3,5]) | 276 test_ds(ds,ds2,[1,3,5]) |
| 277 del ds2 | |
| 281 | 278 |
| 282 #ds[i] | 279 #ds[i] |
| 283 ds2=ds[5] | 280 ds2=ds[5] |
| 284 assert isinstance(ds2,Example) | 281 assert isinstance(ds2,Example) |
| 282 assert have_raised("ds["+str(len(ds))+"]") # index not defined | |
| 283 assert not have_raised("ds["+str(len(ds)-1)+"]") | |
| 284 del ds2 | |
| 285 | 285 |
| 286 #ds[[i1,i2,...in]]# returns a ds with examples i1,i2,...in. | 286 #ds[[i1,i2,...in]]# returns a ds with examples i1,i2,...in. |
| 287 ds2=ds[[4,7,2,8]] | 287 ds2=ds[[4,7,2,8]] |
| 288 assert isinstance(ds2,DataSet) | 288 assert isinstance(ds2,DataSet) |
| 289 test_ds(ds,ds2,[4,7,2,8]) | 289 test_ds(ds,ds2,[4,7,2,8]) |
| 290 del ds2 | |
| 290 | 291 |
| 291 #ds[fieldname]# an iterable over the values of the field fieldname across | 292 #ds[fieldname]# an iterable over the values of the field fieldname across |
| 292 #the ds (the iterable is obtained by default by calling valuesVStack | 293 #the ds (the iterable is obtained by default by calling valuesVStack |
| 293 #over the values for individual examples). | 294 #over the values for individual examples). |
| 295 assert have_raised("ds['h']") # h is not defined... | |
| 296 assert have_raised("ds[['x']]") # bad syntax | |
| 297 assert not have_raised("ds['x']") | |
| 298 isinstance(ds['x'],DataSetFields) | |
| 299 ds2=ds['x'] | |
| 300 assert len(ds['x'])==10 | |
| 301 assert len(ds['y'])==10 | |
| 302 assert len(ds['z'])==10 | |
| 303 i=0 | |
| 304 for example in ds['x']: | |
| 305 assert (example==a[i][:3]).all() | |
| 306 i+=1 | |
| 307 i=0 | |
| 308 for example in ds['y']: | |
| 309 assert (example==a[i][3]).all() | |
| 310 i+=1 | |
| 311 i=0 | |
| 312 for example in ds['z']: | |
| 313 assert (example==a[i,0:3:2]).all() | |
| 314 i+=1 | |
| 315 del ds2,i | |
| 294 | 316 |
| 295 #ds.<property># returns the value of a property associated with | 317 #ds.<property># returns the value of a property associated with |
| 296 #the name <property>. The following properties should be supported: | 318 #the name <property>. The following properties should be supported: |
| 297 # - 'description': a textual description or name for the ds | 319 # - 'description': a textual description or name for the ds |
| 298 # - 'fieldtypes': a list of types (one per field) | 320 # - 'fieldtypes': a list of types (one per field) |
| 321 | |
| 299 #* ds1 | ds2 | ds3 == ds.hstack([ds1,ds2,ds3])#???? | 322 #* ds1 | ds2 | ds3 == ds.hstack([ds1,ds2,ds3])#???? |
| 300 #* ds1 & ds2 & ds3 == ds.vstack([ds1,ds2,ds3])#???? | 323 #* ds1 & ds2 & ds3 == ds.vstack([ds1,ds2,ds3])#???? |
| 301 | 324 |
| 302 | 325 |
| 303 print "test_ArrayDataSet" | 326 print "test_ArrayDataSet" |