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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"RStringVector I/O of `NULL` values should be consistent with R vectors","articleBody":"When we pass a `RStringVector` from the client with all `NULL` values we get incorrect and inconsistent results:\n1. R console output produces boolean/logical `True`  -  **incorrect**\n2. Return type in the calling client is `RDataNA` which is not a vector with `NULL` values  - **incorrect**\n\nResults should be consistent with R, for example:\n\n``` R\n\u003e x \u003c- c(NULL, NULL, NULL, NULL)\n\u003e x\nNULL\n\n\u003e y \u003c- c(NULL, NULL, \"foo\", NULL)\n\u003e y\n[1] \"foo\"\n```\n\nReproduce:\n\n``` java\nList\u003cString\u003e v = new ArrayList\u003cString\u003e();\nv.add(null);\nv.add(null);\nv.add(null);\nv.add(null);\nRDataFactory.createStringVector(\"x\", v);\n\nList\u003cString\u003e v = new ArrayList\u003cString\u003e();\nv.add(null);\nv.add(null);\nv.add(\"foo\");\nv.add(null);\nRDataFactory.createStringVector(\"y\", v);\n```\n\nView response. It  should be consistent with R vectors.\n","author":{"url":"https://github.com/swells","@type":"Person","name":"swells"},"datePublished":"2016-07-01T16:17:36.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/7/java-client-library/issues/7"}