diff options
Diffstat (limited to 'libparc/parc/statistics/parc_BasicStats.c')
| -rw-r--r-- | libparc/parc/statistics/parc_BasicStats.c | 259 |
1 files changed, 0 insertions, 259 deletions
diff --git a/libparc/parc/statistics/parc_BasicStats.c b/libparc/parc/statistics/parc_BasicStats.c deleted file mode 100644 index 9b570d17..00000000 --- a/libparc/parc/statistics/parc_BasicStats.c +++ /dev/null @@ -1,259 +0,0 @@ -/* - * Copyright (c) 2017 Cisco and/or its affiliates. - * 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. - */ - -/** - */ -#include <config.h> - -#include <math.h> - -#include <parc/algol/parc_Object.h> -#include <parc/algol/parc_DisplayIndented.h> -#include <parc/algol/parc_Memory.h> - -#include <parc/statistics/parc_BasicStats.h> - -struct PARCBasicStats { - int64_t count; - double maximum; - double minimum; - double mean; - double variance; -}; - -static inline bool -_parcBasicStats_FloatEquals(double x, double y, double e) -{ - return fabs(x - y) < e; -} - -static bool -_parcBasicStats_Destructor(PARCBasicStats **instancePtr) -{ - parcAssertNotNull(instancePtr, "Parameter must be a non-null pointer to a PARCBasicStats pointer."); - - return true; -} - -parcObject_ImplementAcquire(parcBasicStats, PARCBasicStats); - -parcObject_ImplementRelease(parcBasicStats, PARCBasicStats); - -parcObject_Override( - PARCBasicStats, PARCObject, - .destructor = (PARCObjectDestructor *) _parcBasicStats_Destructor, - .copy = (PARCObjectCopy *) parcBasicStats_Copy, - .toString = (PARCObjectToString *) parcBasicStats_ToString, - .equals = (PARCObjectEquals *) parcBasicStats_Equals, - .compare = (PARCObjectCompare *) parcBasicStats_Compare, - .hashCode = (PARCObjectHashCode *) parcBasicStats_HashCode, - .toJSON = (PARCObjectToJSON *) parcBasicStats_ToJSON); - - -void -parcBasicStats_AssertValid(const PARCBasicStats *instance) -{ - parcAssertTrue(parcBasicStats_IsValid(instance), - "PARCBasicStats is not valid."); -} - - -PARCBasicStats * -parcBasicStats_Create(void) -{ - PARCBasicStats *result = parcObject_CreateInstance(PARCBasicStats); - - if (result != NULL) { - result->count = 0; - result->mean = 0; - result->variance = 0; - result->maximum = 0; - result->minimum = 0; - } - - return result; -} - -int -parcBasicStats_Compare(const PARCBasicStats *instance, const PARCBasicStats *other) -{ - int result = 0; - - return result; -} - -PARCBasicStats * -parcBasicStats_Copy(const PARCBasicStats *original) -{ - PARCBasicStats *result = parcBasicStats_Create(); - result->count = original->count; - result->mean = original->mean; - result->variance = original->variance; - result->maximum = original->maximum; - result->minimum = original->minimum; - - return result; -} - -void -parcBasicStats_Display(const PARCBasicStats *stats, int indentation) -{ - parcDisplayIndented_PrintLine(indentation, - "PARCBasicStats@%p { .count=%" PRId64 " .minimum=%llf .maximum=%llf .mean=%llf }", - stats, stats->count, stats->minimum, stats->maximum, stats->mean); -} - -bool -parcBasicStats_Equals(const PARCBasicStats *x, const PARCBasicStats *y) -{ - bool result = false; - - if (x == y) { - result = true; - } else if (x == NULL || y == NULL) { - result = false; - } else { - if (x->count == y->count) { - if (_parcBasicStats_FloatEquals(x->maximum, y->maximum, 0.00001)) { - if (_parcBasicStats_FloatEquals(x->minimum, y->minimum, 0.00001)) { - if (_parcBasicStats_FloatEquals(x->mean, y->mean, 0.00001)) { - result = true; - } - } - } - } - } - - return result; -} - -PARCHashCode -parcBasicStats_HashCode(const PARCBasicStats *instance) -{ - PARCHashCode result = 0; - - return result; -} - -bool -parcBasicStats_IsValid(const PARCBasicStats *stats) -{ - bool result = false; - - if (stats != NULL) { - result = true; - } - - return result; -} - -PARCJSON * -parcBasicStats_ToJSON(const PARCBasicStats *stats) -{ - PARCJSON *result = parcJSON_Create(); - - if (result != NULL) { - PARCJSONPair *pair = parcJSONPair_CreateFromDouble("maximum", stats->maximum); - parcJSON_AddPair(result, pair); - parcJSONPair_Release(&pair); - - pair = parcJSONPair_CreateFromDouble("minimum", stats->minimum); - parcJSON_AddPair(result, pair); - parcJSONPair_Release(&pair); - - pair = parcJSONPair_CreateFromDouble("mean", stats->mean); - parcJSON_AddPair(result, pair); - parcJSONPair_Release(&pair); - - pair = parcJSONPair_CreateFromDouble("variance", stats->variance); - parcJSON_AddPair(result, pair); - parcJSONPair_Release(&pair); - - pair = parcJSONPair_CreateFromInteger("count", stats->count); - parcJSON_AddPair(result, pair); - parcJSONPair_Release(&pair); - } - - return result; -} - -char * -parcBasicStats_ToString(const PARCBasicStats *stats) -{ - char *result = parcMemory_Format("PARCBasicStats@%p { .count=%" PRId64 " .minimum=%llf .maximum=%llf .mean=%llf }", - stats, stats->count, stats->minimum, stats->maximum, stats->mean); - - return result; -} - -void -parcBasicStats_Update(PARCBasicStats *stats, double value) -{ - stats->count++; - - if (value > stats->maximum) { - stats->maximum = value; - } - - if (value < stats->minimum) { - stats->minimum = value; - } - - double mean_ = stats->mean; - - double xMinusOldMean = value - mean_; - - stats->mean = mean_ + xMinusOldMean / stats->count; - - double xMinusCurrentMean = value - stats->mean; - - stats->variance = ((stats->variance * (stats->count - 1)) + xMinusOldMean * xMinusCurrentMean) / stats->count; -} - -double -parcBasicStats_Mean(const PARCBasicStats *stats) -{ - return stats->mean; -} - -double -parcBasicStats_Variance(const PARCBasicStats *stats) -{ - return stats->variance; -} - -double -parcBasicStats_StandardDeviation(const PARCBasicStats *stats) -{ - return sqrt(stats->variance); -} - -double -parcBasicStats_Maximum(const PARCBasicStats *stats) -{ - return stats->maximum; -} - -double -parcBasicStats_Minimum(const PARCBasicStats *stats) -{ - return stats->minimum; -} - -double -parcBasicStats_Range(const PARCBasicStats *stats) -{ - return stats->maximum - stats->minimum; -} |