Size of feature_names error, should equal with total number of features

[yangdi92]

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Environment info

Operating System: win10 64bit
CPU: i5
R version: microsoft R 3.32
when i run the demo:

require(lightgbm)
require(methods)
data(agaricus.train, package = "lightgbm")
data(agaricus.test, package = "lightgbm")
train <- agaricus.train
test <- agaricus.test
class(train$label)
class(train$data)
print("Training lightgbm with sparseMatrix")
bst <- lightgbm(data = train$data,
label = train$label,
num_leaves = 4,
learning_rate = 1,
nrounds = 2,
objective = "binary")

Error Message:

Error in lgb.call("LGBM_DatasetCreateFromCSC_R", ret = handle, private$raw_data@p, :
api error: Size of feature_names error, should equal with total number of features

i had succedd in runing this program ever, so, what is the problem?

thank you!

[guolinke]

Just test it on latest code, and it runs successfully.
Can you try re-install the latest code and restart R, then test again ?

[yangdi92]

Ok I wii try, thank you very much Sent from Mail Master On 05/22/2017 18:43, Guolin Ke wrote: Just test it on latest code, and it runs successfully. Can you try re-install the latest code and restart R, then test again ? —You are receiving this because you authored the thread.Reply to this email directly, view it on GitHub, or mute the thread. {"api_version":"1.0","publisher":{"api_key":"05dde50f1d1a384dd78767c55493e4bb","name":"GitHub"},"entity":{"external_key":"github/Microsoft/LightGBM","title":"Microsoft/LightGBM","subtitle":"GitHub repository","main_image_url":"https://cloud.githubusercontent.com/assets/143418/17495839/a5054eac-5d88-11e6-95fc-7290892c7bb5.png","avatar_image_url":"https://cloud.githubusercontent.com/assets/143418/15842166/7c72db34-2c0b-11e6-9aed-b52498112777.png","action":{"name":"Open in GitHub","url":"https://github.com/Microsoft/LightGBM"}},"updates":{"snippets":[{"icon":"PERSON","message":"@guolinke in #540: Just test it on latest code, and it runs successfully. \r\nCan you try re-install the latest code and restart R, then test again ? "}],"action":{"name":"View Issue","url":"#540 (comment)"}}}

[yangdi92]

I need to install version v2?Sent from Mail Master On 05/22/2017 18:43, Guolin Ke wrote: Just test it on latest code, and it runs successfully. Can you try re-install the latest code and restart R, then test again ? —You are receiving this because you authored the thread.Reply to this email directly, view it on GitHub, or mute the thread. {"api_version":"1.0","publisher":{"api_key":"05dde50f1d1a384dd78767c55493e4bb","name":"GitHub"},"entity":{"external_key":"github/Microsoft/LightGBM","title":"Microsoft/LightGBM","subtitle":"GitHub repository","main_image_url":"https://cloud.githubusercontent.com/assets/143418/17495839/a5054eac-5d88-11e6-95fc-7290892c7bb5.png","avatar_image_url":"https://cloud.githubusercontent.com/assets/143418/15842166/7c72db34-2c0b-11e6-9aed-b52498112777.png","action":{"name":"Open in GitHub","url":"https://github.com/Microsoft/LightGBM"}},"updates":{"snippets":[{"icon":"PERSON","message":"@guolinke in #540: Just test it on latest code, and it runs successfully. \r\nCan you try re-install the latest code and restart R, then test again ? "}],"action":{"name":"View Issue","url":"#540 (comment)"}}}

[guolinke]

@yangdi92 the latest master branch.

[github-actions]

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