R/Shared.R

In OHDSI/CohortDiagnostics: Diagnostics for OHDSI Cohorts

# Copyright 2024 Observational Health Data Sciences and Informatics
#
# This file is part of CohortDiagnostics
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

hasData <- function(data) {
  if (is.null(data)) {
    return(FALSE)
  }
  if (is.data.frame(data)) {
    if (nrow(data) == 0) {
      return(FALSE)
    }
  }
  if (!is.data.frame(data)) {
    if (length(data) == 0) {
      return(FALSE)
    }
    if (length(data) == 1) {
      if (is.na(data)) {
        return(FALSE)
      }
    }
  }
  return(TRUE)
}