List of Articles Correlation coefficients

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  1 - The application of Dynamic Time Wrapping Algorithm and correlation coefficients in Time Sires Clustering for Index Tracking
  farid tondnevis hasan hakimian
  Index tracking -one of the most popular methods of passive portfolio management- tries to construct a portfolio with same return as a financial market index. This research investigates the application of a binary programming model in time series clustering for index tra More

  Index tracking -one of the most popular methods of passive portfolio management- tries to construct a portfolio with same return as a financial market index. This research investigates the application of a binary programming model in time series clustering for index tracking. Various similarity measurements –Pearson, Kendall, Spearman, Erdem and Dynamic Time Wrapping based distance- have been applied in this research. Out of Sample test on Market Ratio and Tracking error of portfolios based on 50 more active companies index of Tehran Stock Exchange in second, third and fourth season of 1396 and first season of 1397 shows that all portfolios successfully replicate the performance of index and the tracking error of Pearson correlation based portfolio in lower than Others. Paired comparison test on Tracking Error of portfolios shows that tracking Error of Pearson Correlation based portfolio is significantly (99% confidence level) lower than other portfolios. Manuscript profile
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  2 - Study of dispersion of radioactive elements uranium, thorium and potassium in the region Hashtrood using airborne radiometric data
  Ali Nouhi Afshar Zia Zarifi
  Nowadays geophysical airborne data have high importance for radioactive mineral exploration. In fact these data is major base for radioactive elements exploration. In this study by airborne radiometric data interpretation collected from Hashtrod  1:100000 sheet&nbs More

  Nowadays geophysical airborne data have high importance for radioactive mineral exploration. In fact these data is major base for radioactive elements exploration. In this study by airborne radiometric data interpretation collected from Hashtrod  1:100000 sheet  no. 5464 situated in north Iran expectation areas for uranium, thorium and potassium were recognized. Firstly, statistical parameters were calculated and radiometric elements' histograms of the area were drawn using conventional statistics. Moreover, promising maps were drawn based on the dispersion around the mean. Then, concentration- area full logarithm plots were drawn by using fractal method and digit data collected in the area. Next, plots associated uranium, thorium and potassium anomalous areas were prepared after step separation of different environments (background, threshold, anomaly) had been done based on C-A angular coefficient curve. The correlation coefficients between These elements were determined after some tables of data scattering were drawn. The image Ternary radioelement map color space GRB earns in the region and finally to process the images and extract the most important forms of uranium anomalies identified hot area and the introduction of promising deposits of radioactive minerals indexes were examined for discovery proceedings Manuscript profile
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  3 - Study of dispersion of radioactive elements uranium, thorium and potassium in the region Hashtrood using airborne radiometric data
  Ali Nohi Afshar Zia Zarifi
  Nowadays geophysical airborne data have high importance for radioactive mineral exploration. In fact these data is major base for radioactive elements exploration. In this study by airborne radiometric data interpretation collected from Hashtrod  1:100000 sheet&nbs More

  Nowadays geophysical airborne data have high importance for radioactive mineral exploration. In fact these data is major base for radioactive elements exploration. In this study by airborne radiometric data interpretation collected from Hashtrod  1:100000 sheet  no. 5464 situated in north Iran expectation areas for uranium, thorium and potassium were recognized. Firstly, statistical parameters were calculated and radiometric elements' histograms of the area were drawn using conventional statistics. Moreover, promising maps were drawn based on the dispersion around the mean. Then, concentration- area full logarithm plots were drawn by using fractal method and digit data collected in the area. Next, plots associated uranium, thorium and potassium anomalous areas were prepared after step separation of different environments (background, threshold, anomaly) had been done based on C-A angular coefficient curve. The correlation coefficients between These elements were determined after some tables of data scattering were drawn. The image Ternary radioelement map color space GRB earns in the region and finally to process the images and extract the most important forms of uranium anomalies identified hot area and the introduction of promising deposits of radioactive minerals indexes were examined for discovery proceedings. Manuscript profile
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  4 - RCMS: Requirements Conflict Management and Overlapping Control Strategy in CSOP+RP using Pearson Correlation Coefficient
  Soheil Afraz Hassan Rashidi Nasser Mikaeilvand
  10.22094/jcr.2022.1964999.1276
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  5 - Evaluation of yield relationship with yield components in different dry land wheat genotypes
  Elyas Neyestani Hasan Makarian Aliakbar Ameri Mostafa Heydari
  In order to investigate path analysis of grain yield and yield components, an experiment was carried out with 20 genotypes of wheat in a randomized complete block design with four replications in two places in North Khorasan Province, dry land Research Station of Shirva More

  In order to investigate path analysis of grain yield and yield components, an experiment was carried out with 20 genotypes of wheat in a randomized complete block design with four replications in two places in North Khorasan Province, dry land Research Station of Shirvan and Sisab, Iran. In 2015-2016. During the growth stages and after harvesting, traits like plant height, number of days to heading, numbers of spikes per square meter, number of grains per spike, number of days to maturity, seed weight and seed yield were recorded. according to the analysis of variance, between genotypes in terms of number of days to heading, days to maturity, numbers of spikes per square meter, number of grains per spike and grain yield, differences were significant. According to the comparison of the averages, genotypes 17 and 12 with 2522 and 2364 kg.ha-1 had the highest grain yield respectively and genotype 20 with 1190 kg.ha-1grain yield was the lowest. Based on the path analysis results, the number of spike per square meter (69.8%), the number of grains per spike (64.9 %) and grain weight (38.9 %) had the highest direct effect on grain yield. The correlation coefficients showed that seed weight and number of grains per spike and number of spikes per square meter had a significant negative correlation and the number of grains per spike and number of spikes per square meter were significant positive correlation with yield. Manuscript profile
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  6 - The effect of foliar application manganese on quantitative and qualitative traits of barley (Hordeum vulgare) and the relationships between them
  nafiseh mahdinezhad mahmod mohammadkhani Brat Ali Fakheri
  This research was carried out at research farm of agricultural and natural resource station of Zabol, in 2014-2015. Cropping cycle, under alpha lattice design with two replications under two normal conditions and foliar manganese. Foliar Manganese at a concentration of More

  This research was carried out at research farm of agricultural and natural resource station of Zabol, in 2014-2015. Cropping cycle, under alpha lattice design with two replications under two normal conditions and foliar manganese. Foliar Manganese at a concentration of 1 kg/ha was carried out in three stages of planting, stemming and flowering on 148 spring barley cultivars. The results showed that in different growth stages, foliar manganese increased the height, fresh and dry weight of forage, number of tillers per plant, leaf to stem ratio and reduction of seed to forage ratio, compared to normal treatment. Manganese solution increased Crude Protein, Crude Fiber, Acid detergent fiber, Natural detergent fiber and acid detergent lignin traits, as well as reduced qualitative characteristics of dry mater digestibility, Water soluble carbohydrate and ash compared with normal treatment. Simple correlation coefficients between traits showed that there is an inverse relationship between quantity and forage quality. As a result, the factors that increase the amount of forage reduce its quality and vice versa. In the following, using factor analysis, 14 variables were defined in five factors for normal conditions and four factors for manganese soluble conditions which justify 80.81% and 83.85% of the variation of the data, respectively. They made the results of this study indicated the total digestibility of dry mater digestibility, Water soluble carbohydrate, acid detergent fiber and natural detergent fiber from the oral parameters of forage, which can influence on forage quality and animal feed. Manuscript profile
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  7 - Study of genetic variation in safflower genotypes (Carthamus tinctorius L.) in terms of some morphological and agronomic traits
  Ali Khomari Saeed Omrani Ali Omrani Khodadad Mostafavi
  In this study, 32 safflower genotypes in a randomized complete block design with three replications at the Research Farm of Islamic Azad University, Karaj Branch. Plant yield, 1000-seed weight, number of branches, number of bolls per plant, boll weight, flowering time, More

  In this study, 32 safflower genotypes in a randomized complete block design with three replications at the Research Farm of Islamic Azad University, Karaj Branch. Plant yield, 1000-seed weight, number of branches, number of bolls per plant, boll weight, flowering time, seedling time, plant height and flowering time were measured and recorded. Results and Discussion: The results of variance analysis confirmed the diversity of all studied traits among all genotypes studied. The simple correlation coefficients among the traits showed that the weight of the boll and the number of bolls per plant had a positive and significant correlation with plant yield with correlation coefficients of 0.85 and 0.61 respectively at 1% probability level. Based on the results of stepwise regression analysis, the weight of the boll weight and the number of bolls per plant were 75.60% of the variation in plant yield. The results of causal analysis indicated that the most direct and positive effects were related to the weight of the boll weight (1.104). The number of boll/bush had the most indirect effect (0.916) on plant yield through boll weights. Manuscript profile
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  8 - Assessment of relationship between grain yield and some related traits in oilseed sunflower genotypes
  Ali Saremi-Rad Seyede Maryam Seyed Hassan Pour Khodadad Mostafavi Hosein Sadeghi Give
  The purpose of this study is surveying the genetic diversity between oilseed sunflower genotypes and relationships between traits and grain yield, so 12 genotypes cultivated in a completely randomized block design with three replications. Based on the results of analysi More

  The purpose of this study is surveying the genetic diversity between oilseed sunflower genotypes and relationships between traits and grain yield, so 12 genotypes cultivated in a completely randomized block design with three replications. Based on the results of analysis of variance, traits were observed among genotypes at a probability level of 1% for the traits of 100 seeds and at 5% probability for the traits of diameter and grain yield of diversity. The results of simple correlation coefficients of traits showed that the diameter of the plant had the highest correlation with plant height and 100 seed weight. The results of simple correlation coefficients of traits showed that the diameter of the plant had the highest correlation with plant height and 100 seed weight. The results of path analysis showed that the highest direct effect on seed yield was observed on seed width and plant height. Using factor analysis by principal component analysis, four factors justify 82.5% of the data variation. The first factor justified 34.2% of the total variance of the data, that named seed yield, the second factor justifying 21.9% of the variation factor that named length factor ,the third factor, justifying 14.5% of the data changes as the factor of 100-grain weight and the fourth factor justified 11.7% of the total data variance, was named dimeter factor. Manuscript profile